According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The kernel package contains the Linux kernel (vmlinuz),     the core of any Linux operating system. The kernel     handles the basic functions of the operating system:
    memory allocation, process allocation, device input and     output, etc.Security Fix(es):In the Linux kernel     4.19.83, there is a use-after-free (read) in the     debugfs_remove function in fs/debugfs/inode.c (which is     used to remove a file or directory in debugfs that was     previously created with a call to another debugfs     function such as     debugfs_create_file).(CVE-2019-19770)mwifiex_tm_cmd in     driverset/wireless/marvell/mwifiex/cfg80211.c in the     Linux kernel before 5.1.6 has some error-handling cases     that did not free allocated hostcmd memory, aka     CID-003b686ace82. This will cause a memory leak and     denial of service.(CVE-2019-20095)TSX Asynchronous     Abort condition on some CPUs utilizing speculative     execution may allow an authenticated user to     potentially enable information disclosure via a side     channel with local access.(CVE-2019-11135)A memory leak     in the crypto_report() function in     crypto/crypto_user_base.c in the Linux kernel through     5.3.11 allows attackers to cause a denial of service     (memory consumption) by triggering crypto_report_alg()     failures, aka CID-ffdde5932042.(CVE-2019-19062)In the     Linux kernel before 5.1.6, there is a use-after-free in     serial_ir_init_module() in     drivers/media/rc/serial_ir.c.(CVE-2019-19543)In the     Linux kernel through 5.4.6, there is a NULL pointer     dereference in drivers/scsi/libsas/sas_discover.c     because of mishandling of port disconnection during     discovery, related to a PHY down race condition, aka     CID-f70267f379b5.(CVE-2019-19965)In the Linux kernel     before 5.1.6, there is a use-after-free in cpia2_exit()     in drivers/media/usb/cpia2/cpia2_v4l.c that will cause     denial of service, aka     CID-dea37a972655.(CVE-2019-19966)An issue was     discovered in drivers/xen/balloon.c in the Linux kernel     before 5.2.3, as used in Xen through 4.12.x, allowing     guest OS users to cause a denial of service because of     unrestricted resource consumption during the mapping of     guest memory, aka CID-6ef36ab967c7.(CVE-2019-17351)A     memory leak in the crypto_reportstat() function in     drivers/virt/vboxguest/vboxguest_utils.c in the Linux     kernel before 5.3.9 allows attackers to cause a denial     of service (memory consumption) by triggering     copy_form_user() failures, aka     CID-e0b0cb938864.(CVE-2019-19048)kernel/sched/fair.c in     the Linux kernel before 5.3.9, when cpu.cfs_quota_us is     used (e.g., with Kubernetes), allows attackers to cause     a denial of service against non-cpu-bound applications     by generating a workload that triggers unwanted slice     expiration, aka CID-de53fd7aedb1. (In other words,     although this slice expiration would typically be seen     with benign workloads, it is possible that an attacker     could calculate how many stray requests are required to     force an entire Kubernetes cluster into a     low-performance state caused by slice expiration, and     ensure that a DDoS attack sent that number of stray     requests. An attack does not affect the stability of     the kernel it only causes mismanagement of application     execution.)(CVE-2019-19922)An out-of-bounds memory     write issue was found in the Linux Kernel, version 3.13     through 5.4, in the way the Linux kernel's KVM     hypervisor handled the 'KVM_GET_EMULATED_CPUID'     ioctl(2) request to get CPUID features emulated by the     KVM hypervisor. A user or process able to access the     '/dev/kvm' device could use this flaw to crash the     system, resulting in a denial of     service.(CVE-2019-19332)A flaw was found in the fix for     CVE-2019-11135, the way Intel CPUs handle speculative     execution of instructions when a TSX Asynchronous Abort     (TAA) error occurs. When a guest is running on a host     CPU affected by the TAA flaw (TAA_NO=0), but is not     affected by the MDS issue (MDS_NO=1), the guest was to     clear the affected buffers by using a VERW instruction     mechanism. But when the MDS_NO=1 bit was exported to     the guests, the guests did not use the VERW mechanism     to clear the affected buffers. This issue affects     guests running on Cascade Lake CPUs and requires that     host has 'TSX' enabled. Confidentiality of data is the     highest threat associated with this     vulnerability.(CVE-2019-19338)In the Linux kernel     5.0.0-rc7 (as distributed in ubuntu/linux.git on     kernel.ubuntu.com), mounting a crafted f2fs filesystem     image and performing some operations can lead to     slab-out-of-bounds read access in ttm_put_pages in     drivers/gpu/drm/ttm/ttm_page_alloc.c. This is related     to the vmwgfx or ttm module.(CVE-2019-19927)In the     Linux kernel 4.14 longterm through 4.14.165 and 4.19     longterm through 4.19.96 (and 5.x before 5.2), there is     a use-after-free (write) in the i915_ppgtt_close     function in drivers/gpu/drm/i915/i915_gem_gtt.c, aka     CID-7dc40713618c. This is related to     i915_gem_context_destroy_ioctl in     drivers/gpu/drm/i915/i915_gem_context.c.(CVE-2020-7053)     In the Linux kernel through 5.4.6, there are     information leaks of uninitialized memory to a USB     device in the     driverset/can/usb/kvaser_usb/kvaser_usb_leaf.c driver,     aka CID-da2311a6385c.(CVE-2019-19947)In the Linux     kernel before 5.0.6, there is a NULL pointer     dereference in drop_sysctl_table() in     fs/proc/proc_sysctl.c, related to put_links, aka     CID-23da9588037e.(CVE-2019-20054)In the Linux kernel     before 5.1, there is a memory leak in
    __feat_register_sp() in net/dccp/feat.c, which may     cause denial of service, aka     CID-1d3ff0950e2b.(CVE-2019-20096)A heap-based buffer     overflow vulnerability was found in the Linux kernel,     version kernel-2.6.32, in Marvell WiFi chip driver. A     remote attacker could cause a denial of service (system     crash) or, possibly execute arbitrary code, when the     lbs_ibss_join_existing function is called after a STA     connects to an AP.(CVE-2019-14896)A heap-based buffer     overflow was discovered in the Linux kernel, all     versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi     chip driver. The flaw could occur when the station     attempts a connection negotiation during the handling     of the remote devices country settings. This could     allow the remote device to cause a denial of service     (system crash) or possibly execute arbitrary     code.(CVE-2019-14895)A stack-based buffer overflow was     found in the Linux kernel, version kernel-2.6.32, in     Marvell WiFi chip driver. An attacker is able to cause     a denial of service (system crash) or, possibly execute     arbitrary code, when a STA works in IBSS mode (allows     connecting stations together without the use of an AP)     and connects to another STA.(CVE-2019-14897)An     exploitable denial-of-service vulnerability exists in     the Linux kernel prior to mainline 5.3. An attacker     could exploit this vulnerability by triggering AP to     send IAPP location updates for stations before the     required authentication process has completed. This     could lead to different denial-of-service scenarios,     either by causing CAM table attacks, or by leading to     traffic flapping if faking already existing clients in     other nearby APs of the same wireless infrastructure.
    An attacker can forge Authentication and Association     Request packets to trigger this     vulnerability.(CVE-2019-5108)drivers/gpu/drm/radeon/rad     eon_display.c in the Linux kernel 5.2.14 does not check     the alloc_workqueue return value, leading to a NULL     pointer dereference.(CVE-2019-16230)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The kernel package contains the Linux kernel (vmlinuz),     the core of any Linux operating system. The kernel     handles the basic functions of the operating system:
    memory allocation, process allocation, device input and     output, etc.Security Fix(es):Linux kernel CIFS     implementation, version 4.9.0 is vulnerable to a     relative paths injection in directory entry     lists.(CVE-2019-10220)A memory leak in the     i2400m_op_rfkill_sw_toggle() function in drivers/     net/wimax/i2400m/op-rfkill.c in the Linux kernel before     5.3.11 allows attackers to cause a denial of service     (memory consumption), aka     CID-6f3ef5c25cc7.(CVE-2019-19051)A memory leak in the     sdma_init() function in     drivers/infiniband/hw/hfi1/sdma.c in the Linux kernel     before 5.3.9 allows attackers to cause a denial of     service (memory consumption) by triggering     rhashtable_init() failures, aka     CID-34b3be18a04e.(CVE-2019-19065)Four memory leaks in     the acp_hw_init() function in     drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c in the Linux     kernel before 5.3.8 allow attackers to cause a denial     of service (memory consumption) by triggering     mfd_add_hotplug_devices() or pm_genpd_add_device()     failures, aka CID-57be09c6e874. NOTE: third parties     dispute the relevance of this because the attacker must     already have privileges for module     loading.(CVE-2019-19067)An issue was discovered in     drivers/xen/balloon.c in the Linux kernel before 5.2.3,     as used in Xen through 4.12.x, allowing guest OS users     to cause a denial of service because of unrestricted     resource consumption during the mapping of guest     memory, aka CID-6ef36ab967c7.(CVE-2019-17351)The     xen_biovec_phys_mergeable function in     drivers/xen/biomerge.c in Xen might allow local OS     guest users to corrupt block device data streams and     consequently obtain sensitive memory information, cause     a denial of service, or gain host OS privileges by     leveraging incorrect block IO merge-ability     calculation.(CVE-2017-12134)In the Linux kernel before     5.3.7, there is a use-after-free bug that can be caused     by a malicious USB device in the     drivers/usb/misc/adutux.c driver, aka     CID-44efc269db79.(CVE-2019-19523)In the Linux kernel     before 5.3.7, there is a use-after-free bug that can be     caused by a malicious USB device in the     drivers/usb/misc/iowarrior.c driver, aka     CID-edc4746f253d.(CVE-2019-19528)In the Linux kernel     before 5.2.10, there is a use-after-free bug that can     be caused by a malicious USB device in the     drivers/usb/class/cdc-acm.c driver, aka     CID-c52873e5a1ef.(CVE-2019-19530)In the Linux kernel     before 5.3.4, there is an info-leak bug that can be     caused by a malicious USB device in the     drivers/media/usb/ttusb-dec/ttusb_dec.c driver, aka     CID-a10feaf8c464.(CVE-2019-19533)In the Linux kernel     before 5.2.10, there is a race condition bug that can     be caused by a malicious USB device in the USB     character device driver layer, aka CID-303911cfc5b9.
    This affects drivers/usb/core/file.c.(CVE-2019-19537)In     the Linux kernel before 5.3.12, there is a     use-after-free bug that can be caused by a malicious     USB device in the drivers/input/ff-memless.c driver,     aka CID-fa3a5a1880c9.(CVE-2019-19524)In the Linux     kernel before 5.2.10, there is a use-after-free bug     that can be caused by a malicious USB device in the     drivers/hid/usbhid/hiddev.c driver, aka     CID-9c09b214f30e.(CVE-2019-19527)In the Linux kernel     before 5.3.9, there are multiple out-of-bounds write     bugs that can be caused by a malicious USB device in     the Linux kernel HID drivers, aka CID-d9d4b1e46d95.
    This affects drivers/hid/hid-axff.c,     drivers/hid/hid-dr.c, drivers/hid/hid-emsff.c,     drivers/hid/hid-gaff.c, drivers/hid/hid-holtekff.c,     drivers/hid/hid-lg2ff.c, drivers/hid/hid-lg3ff.c,     drivers/hid/hid-lg4ff.c, drivers/hid/hid-lgff.c,     drivers/hid/hid-logitech-hidpp.c,     drivers/hid/hid-microsoft.c, drivers/hid/hid-sony.c,     drivers/hid/hid-tmff.c, and     drivers/hid/hid-zpff.c.(CVE-2019-19532)The VFS     subsystem in the Linux kernel 3.x provides an     incomplete set of requirements for setattr operations     that underspecifies removing extended privilege     attributes, which allows local users to cause a denial     of service (capability stripping) via a failed     invocation of a system call, as demonstrated by using     chown to remove a capability from the ping or Wireshark     dumpcap program.(CVE-2015-1350)In the Linux kernel     before 5.2.9, there is a use-after-free bug that can be     caused by a malicious USB device in the     drivers/usb/misc/yurex.c driver, aka     CID-fc05481b2fca.(CVE-2019-19531)The Linux kernel     through 5.3.13 has a start_offset+size Integer Overflow     in cpia2_remap_buffer in     drivers/media/usb/cpia2/cpia2_core.c because cpia2 has     its own mmap implementation. This allows local users     (with /dev/video0 access) to obtain read and write     permissions on kernel physical pages, which can     possibly result in a privilege     escalation.(CVE-2019-18675)A flaw was found in the way     signature calculation was handled by cephx     authentication protocol. An attacker having access to     ceph cluster network who is able to alter the message     payload was able to bypass signature checks done by     cephx protocol. Ceph branches master, mimic, luminous     and jewel are believed to be     vulnerable.(CVE-2018-1129)A memory leak in the     alloc_sgtable() function in     driverset/wireless/intel/iwlwifi/fw/dbg.c in the Linux     kernel through 5.3.11 allows attackers to cause a     denial of service (memory consumption) by triggering     alloc_page() failures, aka     CID-b4b814fec1a5.(CVE-2019-19058)A memory leak in the     ath9k_wmi_cmd() function in     driverset/wireless/ath/ath9k/wmi.c in the Linux kernel     through 5.3.11 allows attackers to cause a denial of     service (memory consumption), aka     CID-728c1e2a05e4.(CVE-2019-19074)Memory leaks in     driverset/wireless/ath/ath9k/htc_hst.c in the Linux     kernel through 5.3.11 allow attackers to cause a denial     of service (memory consumption) by triggering     wait_for_completion_timeout() failures. This affects     the htc_config_pipe_credits() function, the     htc_setup_complete() function, and the     htc_connect_service() function, aka     CID-853acf7caf10.(CVE-2019-19073)Two memory leaks in     the rtl_usb_probe() function in     driverset/wireless/realtek/rtlwifi/usb.c in the Linux     kernel through 5.3.11 allow attackers to cause a denial     of service (memory consumption), aka     CID-3f9361695113.(CVE-2019-19063)A memory leak in the     mwifiex_pcie_alloc_cmdrsp_buf() function in     driverset/wireless/marvell/mwifiex/pcie.c in the Linux     kernel through 5.3.11 allows attackers to cause a     denial of service (memory consumption) by triggering     mwifiex_map_pci_memory() failures, aka     CID-db8fd2cde932.(CVE-2019-19056)Two memory leaks in     the mwifiex_pcie_init_evt_ring() function in     driverset/wireless/marvell/mwifiex/pcie.c in the Linux     kernel through 5.3.11 allow attackers to cause a denial     of service (memory consumption) by triggering     mwifiex_map_pci_memory() failures, aka     CID-d10dcb615c8e.(CVE-2019-19057)An issue was     discovered in the Linux kernel through 5.2.9. There is     a NULL pointer dereference caused by a malicious USB     device in the flexcop_usb_probe function in the     drivers/media/usb/b2c2/flexcop-usb.c     driver.(CVE-2019-15291)A use-after-free in binder.c     allows an elevation of privilege from an application to     the Linux Kernel. No user interaction is required to     exploit this vulnerability, however exploitation does     require either the installation of a malicious local     application or a separate vulnerability in a network     facing application.Product: AndroidAndroid ID:
    A-141720095(CVE-2019-2215)In task_get_unused_fd_flags     of binder.c, there is a possible memory corruption due     to a use after free. This could lead to local     escalation of privilege with no additional execution     privileges needed. User interaction is not needed for     exploitation. Product: Android Versions: Android kernel     Android ID: A-69164715 References: Upstream     kernel.(CVE-2018-9465)In the Android kernel in Pixel C     USB monitor driver there is a possible OOB write due to     a missing bounds check. This could lead to local     escalation of privilege with System execution     privileges needed. User interaction is not needed for     exploitation.(CVE-2019-9456)fs/btrfs/volumes.c in the     Linux kernel before 5.1 allows a     btrfs_verify_dev_extents NULL pointer dereference via a     crafted btrfs image because fs_devices->devices is     mishandled within find_device, aka     CID-09ba3bc9dd15.(CVE-2019-18885)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

遠端 Ubuntu 16.04 LTS 主機上安裝的一個套件受到 USN-4286-1 公告中所提及的多個弱點影響。

  - 在配備 Intel(R) Processor Graphics 的部分 Intel(R) 處理器中，某些資料結構中的控制流程不足可能導致未經驗證的使用者透過本機存取造成資訊洩漏。
    (CVE-2019-14615)

  - 在 5.2.3 版之前的 Linux 核心中發現一個問題。在 drivers/media/usb/zr364xx/zr364xx.c driver 中，有一個惡意 USB 裝置造成的 NULL 指標解除參照問題。 (CVE-2019-15217)

  - 在 5.2.1 版之前的 Linux 核心中發現一個問題。drivers/net/wireless/intersil/p54/p54usb.c 驅動程式中存在由惡意 USB 裝置造成的釋放後使用情形。(CVE-2019-15220)

  - 在 5.1.17 版之前的 Linux 核心中發現一個問題。在 sound/usb/line6/pcm.c 驅動程式中，有一個惡意 USB 裝置造成的 NULL 指標解除參照問題。 (CVE-2019-15221)

  - 在 Linux 核心 5.2.3 之前版本 (在 Xen 4.12.x 及其之前版本中使用) 的 drivers/xen/balloon.c 中發現一個問題， 因為對應來賓記憶體期間的資源消耗不受限制，來賓作業系統使用者可藉此造成拒絕服務，即 CID-6ef36ab967c7。(CVE-2019-17351)

  - 在 Linux 核心 5.3.11 之前版本中，drivers/net/wimax/i2400m/op-rfkill.c 中的 i2400m_op_rfkill_sw_toggle() 函式存在記憶體流失問題，攻擊者可藉此造成拒絕服務 (記憶體消耗)，即 CID-6f3ef5c25cc7。(CVE-2019-19051)

  - 在 5.3.11 及之前版本的 Linux 核心中，drivers/net/wireless/marvell/mwifiex/pcie.c 的 mwifiex_pcie_alloc_cmdrsp_buf() 函式存在記憶體洩漏，這會允許攻擊者透過觸發 mwifiex_map_pci_memory() 失敗情形引致拒絕服務 (記憶體消耗)，亦稱 CID-db8fd2cde932。(CVE-2019-19056)

  - 在 Linux 核心 5.3.11 及之前版本中，drivers/scsi/bfa/bfad_attr.c 中的 bfad_im_get_stats() 函式存在記憶體洩漏，這會允許攻擊者透過觸發 bfa_port_get_stats() 失敗情形引致拒絕服務 (記憶體消耗)，亦稱 CID-0e62395da2bd。(CVE-2019-19066)

  - 在 5.3.11 及之前版本的 Linux 核心中，drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c 的 rtl8xxxu_submit_int_urb() 函式存在記憶體流失問題，攻擊者可藉由觸發 usb_submit_urb() 失敗來造成程式拒絕服務 (記憶體消耗)， 即 CID-a2cdd07488e6。(CVE-2019-19068)

  - 在 Linux 核心 5.4.6 及之前版本中，drivers/scsi/libsas/sas_discover.c 中有一個 NULL 指標解除參照問題，這是因為在探索期間不當處理連接埠中斷連線所致，此問題與 PHY 爭用情形 (即 CID-f70267f379b5) 相關。(CVE-2019-19965)

  - 在 5.1 版之前的 Linux 核心中，net/dccp/feat.c 的 __feat_register_sp() 中有記憶體洩露問題，這可能造成拒絕服務，亦即 CID-1d3ff0950e2b。(CVE-2019-20096)

  - 在 mainline 5.3 之前版本的 Linux 核心中存在一個可遭惡意利用的拒絕服務弱點。攻擊者可惡意利用此弱點，在所需的驗證處理序完成前，觸發 AP 傳送工作站的 IAPP 位置更新。這可導致不同的拒絕服務情形，方法是造成 CAM 表格攻擊，或在偽造具有相同無線基礎結構的附近其他 AP 中已有用戶端時造成流量浮動。攻擊者可偽造驗證和關聯要求封包來觸發此弱點。(CVE-2019-5108)

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

リモートの Ubuntu 16.04 LTS ホストには、USN-4286-1のアドバイザリに記載された複数の脆弱性の影響を受けるパッケージがインストールされています。

  -Intel(R) Processor Graphicsを搭載した一部のIntel(R)プロセッサの特定のデータ構造における制御フローが不十分なため、認証されていないユーザーがローカルアクセスを介して情報漏洩を引き起こす可能性があります。
    (CVE-2019-14615)

  - 5.2.3 より前の Linux カーネルで問題が検出されました。drivers/media/usb/zr364xx/zr364xx.cドライバーに、悪意のあるUSBデバイスに引き起こされたNULLポインターのデリファレンスがあります。(CVE-2019-15217)

  - 5.2.1 より前の Linux カーネルで問題が検出されました。drivers/net/wireless/intersil/p54/p54usb.cドライバーに、悪意のあるUSBデバイスによって引き起こされるメモリ解放後使用（Use After Free）があります。（CVE-2019-15220）

  - 5.1.17 より前の Linux カーネルで問題が発見されました。sound/usb/line6/pcm.cドライバーに、悪意のあるUSBデバイスに引き起こされたNULLポインターのデリファレンスがあります。(CVE-2019-15221)

  - 4.12.x までの Xen で使用される 5.2.3 以前の Linux カーネルの drivers/xen/balloon.c に問題が検出されました。ゲスト OS のユーザーは、ゲストメモリのマッピング中に制限のないリソース消費を引き起こす可能性があり、これが原因でサービスの拒否が発生する可能性があります。(別名: CID-6ef36ab967c7)。(CVE-2019-17351)

  - 5.3.11 以前の Linux カーネルにある drivers/net/wimax/i2400m/op-rfkill.c 内の i2400m_op_rfkill_sw_toggle() 関数におけるメモリ漏洩により、攻撃者はサービスの拒否 (メモリの消費) を引き起こす可能性があります。(別名: CID-6f3ef5c25cc7)。(CVE-2019-19051)

  - 5.3.11 までの Linux カーネルの drivers/net/wireless/marvell/mwifiex/pcie.c の mwifiex_pcie_alloc_cmdrsp_buf() 関数のメモリリークにより、攻撃者が mwifiex_map_pci_memory() の失敗をトリガーすることで、サービス拒否 (メモリ消費) を引き起こす可能性があります (別名 CID-db8fd2cde932)。(CVE-2019-19056)

  -5.3.11までのLinuxカーネルのdrivers/scsi/bfa/bfad_attr.cのbfad_im_get_stats()関数におけるメモリリークにより、攻撃者がbfa_port_get_stats()の失敗をトリガーすることで、サービス拒否(メモリ消費)を引き起こす可能性があります。(別名CID-0e62395da2bd)。(CVE-2019-19066)

  - 5.3.11 までの Linux カーネルの drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c の rtl8xxxu_submit_int_urb() 関数のメモリリークにより、攻撃者が usb_submit_urb() の失敗をトリガーすることで、サービス拒否 (メモリ消費) を引き起こす可能性があります (別名 CID-a2cdd07488e6)。(CVE-2019-19068)

  - 5.4.6 までの Linux カーネルでは、PHY ダウン競合状態に関連する検出中のポート切断の不適切な処理のため、drivers/scsi/libsas/sas_discover.c に NULL ポインターデリファレンスが存在します (別名: CID-f70267f379b5)。(CVE-2019-19965)

  -以前5.1のLinuxカーネルでは、net/dccp/feat.cの__feat_register_sp()にメモリリークがあり、サービス拒否が発生する可能性があります(別名CID-1d3ff0950e2b)。(CVE-2019-20096)

  -メインライン5.3以前のLinuxカーネルに、悪用可能なサービス拒否の脆弱性が存在します。必要な認証プロセスが完了する前に、APをトリガーしてステーションにIAPPロケーションの更新を送信することで、攻撃者がこの脆弱性を悪用する可能性があります。これにより、さまざまなサービス拒否のシナリオが引き起こされる可能性があります。これは、CAMテーブル攻撃を引き起こすか、同じワイヤレスインフラストラクチャの他の近くのAPにある既存のクライアントを偽装している場合は、トラフィックのフラッピングを引き起こすことによって行われます。攻撃者は認証および関連付けリクエストパケットを偽造してこの脆弱性を発生させる可能性があります。(CVE-2019-5108)

Nessus はこれらの問題をテストしておらず、代わりにアプリケーションが自己報告するバージョン番号にのみ依存していることに注意してください。

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4286-1 advisory.

  - Insufficient control flow in certain data structures for some Intel(R) Processors with Intel(R) Processor     Graphics may allow an unauthenticated user to potentially enable information disclosure via local access.
    (CVE-2019-14615)

  - An issue was discovered in the Linux kernel before 5.2.3. There is a NULL pointer dereference caused by a     malicious USB device in the drivers/media/usb/zr364xx/zr364xx.c driver. (CVE-2019-15217)

  - An issue was discovered in the Linux kernel before 5.2.1. There is a use-after-free caused by a malicious     USB device in the drivers/net/wireless/intersil/p54/p54usb.c driver. (CVE-2019-15220)

  - An issue was discovered in the Linux kernel before 5.1.17. There is a NULL pointer dereference caused by a     malicious USB device in the sound/usb/line6/pcm.c driver. (CVE-2019-15221)

  - An issue was discovered in drivers/xen/balloon.c in the Linux kernel before 5.2.3, as used in Xen through     4.12.x, allowing guest OS users to cause a denial of service because of unrestricted resource consumption     during the mapping of guest memory, aka CID-6ef36ab967c7. (CVE-2019-17351)

  - A memory leak in the i2400m_op_rfkill_sw_toggle() function in drivers/net/wimax/i2400m/op-rfkill.c in the     Linux kernel before 5.3.11 allows attackers to cause a denial of service (memory consumption), aka     CID-6f3ef5c25cc7. (CVE-2019-19051)

  - A memory leak in the mwifiex_pcie_alloc_cmdrsp_buf() function in     drivers/net/wireless/marvell/mwifiex/pcie.c in the Linux kernel through 5.3.11 allows attackers to cause a     denial of service (memory consumption) by triggering mwifiex_map_pci_memory() failures, aka CID-     db8fd2cde932. (CVE-2019-19056)

  - A memory leak in the bfad_im_get_stats() function in drivers/scsi/bfa/bfad_attr.c in the Linux kernel     through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering     bfa_port_get_stats() failures, aka CID-0e62395da2bd. (CVE-2019-19066)

  - A memory leak in the rtl8xxxu_submit_int_urb() function in     drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c in the Linux kernel through 5.3.11 allows attackers     to cause a denial of service (memory consumption) by triggering usb_submit_urb() failures, aka     CID-a2cdd07488e6. (CVE-2019-19068)

  - In the Linux kernel through 5.4.6, there is a NULL pointer dereference in     drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related     to a PHY down race condition, aka CID-f70267f379b5. (CVE-2019-19965)

  - In the Linux kernel before 5.1, there is a memory leak in __feat_register_sp() in net/dccp/feat.c, which     may cause denial of service, aka CID-1d3ff0950e2b. (CVE-2019-20096)

  - An exploitable denial-of-service vulnerability exists in the Linux kernel prior to mainline 5.3. An     attacker could exploit this vulnerability by triggering AP to send IAPP location updates for stations     before the required authentication process has completed. This could lead to different denial-of-service     scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already     existing clients in other nearby APs of the same wireless infrastructure. An attacker can forge     Authentication and Association Request packets to trigger this vulnerability. (CVE-2019-5108)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the linux package has been released.

远程 Ubuntu 16.04 LTS 主机上安装的一个程序包受到 USN-4286-1 公告中提及的多个漏洞影响。

  - 在配有 Intel(R) Processor Graphics 的部分 Intel(R) 处理器中，某些数据结构中的控制流不足可能导致未经身份验证的用户或可通过本地访问造成信息泄露。
    (CVE-2019-14615)

  - 在 Linux 内核 5.2.3 之前的版本中发现问题。在 drivers/media/usb/zr364xx/zr364xx.c driver 驱动程序中，存在由恶意 USB 设备造成的空指针取消引用。(CVE-2019-15217)

  - 在 Linux 内核 5.2.1 之前的版本中发现问题。drivers/net/wireless/intersil/p54/p54usb.c 驱动程序中存在恶意 USB 设备造成的释放后使用。(CVE-2019-15220)

  - 在 Linux 内核 5.1.17 之前的版本中发现问题。在 sound/usb/line6/pcm.c 驱动程序中，存在恶意 USB 设备造成的空指针取消引用。(CVE-2019-15221)

  - 在 4.12.x 及之前的 Xen 中使用的 5.2.3 之前的 Linux 内核中，在 drivers/xen/balloon.c 中发现一个问题，导致客户机操作系统用户可以在映射客户机内存期间造成拒绝服务（因为未限制资源消耗），也称为 CID-6ef36ab967c7。(CVE-2019-17351)

  - 在 5.3.11 之前的 Linux 内核中，drivers/net/wimax/i2400m/op-rfkill.c 的 i2400m_op_rfkill_sw_toggle() 函数中存在内存泄露漏洞，导致攻击者可以造成拒绝服务（内存消耗），也称为 CID-6f3ef5c25cc7。(CVE-2019-19051)

  - 在 Linux 内核 5.3.11 及之前版本中，drivers/net/wireless/marvell/mwifiex/pcie.c 中的 mwifiex_pcie_alloc_cmdrsp_buf() 函数中存在内存泄漏，攻击者可利用此漏洞，通过触发 mwifiex_map_pci_memory() 失败，造成拒绝服务（内存消耗），亦即 CID-db8fd2cde932。(CVE-2019-19056)

  - 在 Linux 内核 5.3.11 及之前版本中，drivers/scsi/bfa/bfad_attr.c 中的 bfad_im_get_stats() 函数中存在内存泄漏，攻击者可利用此漏洞，通过触发 bfa_port_get_stats() 失败，造成拒绝服务（内存消耗），亦即 CID-0e62395da2bd。(CVE-2019-19066)

  - 在 Linux 内核 5.3.11 及之前版本中，drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c 中的 rtl8xxxu_submit_int_urb() 函数中存在内存泄露，攻击者可利用此漏洞，通过触发 usb_submit_urb() 失败，造成拒绝服务（内存消耗），也称为 CID-a2cdd07488e6。(CVE-2019-19068)

  - 在 Linux 内核 5.4.6 及其之前版本中，drivers/scsi/libsas/sas_discover.c 中存在空指针取消引用，这是在发现期间错误处理端口断开连接所致，与 PHY 向下争用条件有关，亦称 CID-f70267f379b5。(CVE-2019-19965)

  - 在 Linux 内核 5.1 之前版本中，net/dccp/feat.c 的 __feat_register_sp() 中存在内存泄露，可能造成拒绝服务，亦称 CID-1d3ff0950e2b。(CVE-2019-20096)

  - 在 Linux 内核 mainline 5.3 之前版本中存在可遭恶意利用的拒绝服务漏洞。攻击者可利用此漏洞，在所需的身份验证流程完成前触发 AP 以发送站点的 IAPP 位置更新。这可能导致不同的拒绝服务情形，方法是造成 CAM 表攻击，或者在伪造具有相同无线基础架构的其他邻近 AP 中已存在客户端时造成流量漂移。攻击者可伪造身份验证和关联请求数据包来触发此漏洞。(CVE-2019-5108)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

ID	名前	製品	ファミリー	公開日	更新日	深刻度
133992	EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1158)	Nessus	Huawei Local Security Checks	2020/2/25	2024/3/26	critical
132360	EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-2693)	Nessus	Huawei Local Security Checks	2019/12/23	2023/4/25	high
133799	Ubuntu 16.04 LTS：Linux 核心弱點 (USN-4286-1)	Nessus	Ubuntu Local Security Checks	2020/2/19	2024/1/9	medium
133799	Ubuntu 16.04 LTS : Linux カーネル脆弱性 (USN-4286-1)	Nessus	Ubuntu Local Security Checks	2020/2/19	2024/1/9	medium
133799	Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4286-1)	Nessus	Ubuntu Local Security Checks	2020/2/19	2024/1/9	medium
128732	Photon OS 3.0: Linux PHSA-2019-3.0-0026	Nessus	PhotonOS Local Security Checks	2019/9/12	2024/7/24	critical
133799	Ubuntu 16.04 LTS：Linux 内核漏洞 (USN-4286-1)	Nessus	Ubuntu Local Security Checks	2020/2/19	2024/1/9	medium

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