The following vulnerabilities have been discovered in the webkit2gtk web engine :

  - CVE-2020-9948     Brendan Draper discovered that processing maliciously     crafted web content may lead to arbitrary code     execution.

  - CVE-2020-9951     Marcin Noga discovered that processing maliciously     crafted web content may lead to arbitrary code     execution.

  - CVE-2020-9983     zhunki discovered that processing maliciously crafted     web content may lead to code execution.

  - CVE-2020-13584     Cisco discovered that processing maliciously crafted web     content may lead to arbitrary code execution.

This update for webkit2gtk3 fixes the following issues :

-webkit2gtk3 was updated to version 2.30.3 (bsc#1179122 bsc#1179451) :

  - CVE-2021-13543: Fixed a use after free which could have     led to arbitrary code execution.

  - CVE-2021-13584: Fixed a use after free which could have     led to arbitrary code execution.

  - CVE-2021-9948: Fixed a type confusion which could have     led to arbitrary code execution.

  - CVE-2021-9951: Fixed a use after free which could have     led to arbitrary code execution.

  - CVE-2021-9983: Fixed an out of bounds write which could     have led to arbitrary code execution.

  - Have the libwebkit2gtk package require     libjavascriptcoregtk of the same version (bsc#1171531).

  - Enable c_loop on aarch64: currently needed for     compilation to succeed with JIT disabled. Also disable     sampling profiler, since it conflicts with c_loop     (bsc#1177087).

This update was imported from the SUSE:SLE-15-SP2:Update update project.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1586 advisory.

    GNOME is the default desktop environment of Red Hat Enterprise Linux.

    The following packages have been upgraded to a later upstream version: accountsservice (0.6.55),     webkit2gtk3 (2.30.4). (BZ#1846376, BZ#1883304)

    Security Fix(es):

    * webkitgtk: type confusion may lead to arbitrary code execution (CVE-2020-9948)

    * webkitgtk: use-after-free may lead to arbitrary code execution (CVE-2020-9951)

    * webkitgtk: out-of-bounds write may lead to code execution (CVE-2020-9983)

    * webkitgtk: use-after-free may lead to arbitrary code execution (CVE-2020-13543)

    * webkitgtk: use-after-free may lead to arbitrary code execution (CVE-2020-13584)

    * glib2: insecure permissions for files and directories (CVE-2019-13012)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

This update for webkit2gtk3 fixes the following issues :

-webkit2gtk3 was updated to version 2.30.3 (bsc#1179122 bsc#1179451) :

  - CVE-2021-13543: Fixed a use after free which could have     led to arbitrary code execution.

  - CVE-2021-13584: Fixed a use after free which could have     led to arbitrary code execution.

  - CVE-2021-9948: Fixed a type confusion which could have     led to arbitrary code execution.

  - CVE-2021-9951: Fixed a use after free which could have     led to arbitrary code execution.

  - CVE-2021-9983: Fixed an out of bounds write which could     have led to arbitrary code execution.

  - Have the libwebkit2gtk package require     libjavascriptcoregtk of the same version (bsc#1171531).

  - Enable c_loop on aarch64: currently needed for     compilation to succeed with JIT disabled. Also disable     sampling profiler, since it conflicts with c_loop     (bsc#1177087).

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

The remote host is affected by the vulnerability described in GLSA-202012-10 (WebkitGTK+: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in WebKitGTK+. Please       review the CVE identifiers referenced below for details.
  Impact :

    An attacker, by enticing a user to visit maliciously crafted web       content, may be able to execute arbitrary code or cause memory       corruption.
  Workaround :

    There is no known workaround at this time.

This update for webkit2gtk3 fixes the following issues :

-webkit2gtk3 was updated to version 2.30.3 (bsc#1179122 bsc#1179451) :

  - CVE-2021-13543: Fixed a use after free which could have     led to arbitrary code execution.

  - CVE-2021-13584: Fixed a use after free which could have     led to arbitrary code execution.

  - CVE-2021-9948: Fixed a type confusion which could have     led to arbitrary code execution.

  - CVE-2021-9951: Fixed a use after free which could have     led to arbitrary code execution.

  - CVE-2021-9983: Fixed an out of bounds write which could     have led to arbitrary code execution.

  - Have the libwebkit2gtk package require     libjavascriptcoregtk of the same version (bsc#1171531).

  - Enable c_loop on aarch64: currently needed for     compilation to succeed with JIT disabled. Also disable     sampling profiler, since it conflicts with c_loop     (bsc#1177087).

This update was imported from the SUSE:SLE-15:Update update project.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-1586 advisory.

    - Fix CVE-2019-13012       Resolves: #1728632

    glibmm24

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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

The remote NewStart CGSL host, running version MAIN 6.02, has webkit2gtk3 packages installed that are affected by multiple vulnerabilities:

  - A code execution vulnerability exists in the WebSocket functionality of Webkit WebKitGTK 2.30.0. A     specially crafted web page can trigger a use-after-free vulnerability which can lead to remote code     execution. An attacker can get a user to visit a webpage to trigger this vulnerability. (CVE-2020-13543)

  - An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.1 x64. A specially     crafted HTML web page can cause a use-after-free condition, resulting in a remote code execution. The     victim needs to visit a malicious web site to trigger this vulnerability. (CVE-2020-13584)

  - A type confusion issue was addressed with improved memory handling. This issue is fixed in Safari 14.0.
    Processing maliciously crafted web content may lead to arbitrary code execution. (CVE-2020-9948)

  - A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.0.
    Processing maliciously crafted web content may lead to arbitrary code execution. (CVE-2020-9951)

  - An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari     14.0. Processing maliciously crafted web content may lead to code execution. (CVE-2020-9983)

  - A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big     Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may     lead to arbitrary code execution. (CVE-2021-1817)

  - A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS     Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content     may result in the disclosure of process memory. (CVE-2021-1820)

  - An input validation issue was addressed with improved input validation. This issue is fixed in iTunes     12.11.3 for Windows, iCloud for Windows 12.3, macOS Big Sur 11.3, Safari 14.1, watchOS 7.4, tvOS 14.5, iOS     14.5 and iPadOS 14.5. Processing maliciously crafted web content may lead to a cross site scripting     attack. (CVE-2021-1825)

  - A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.3, iOS     14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may lead to     universal cross site scripting. (CVE-2021-1826)

  - A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.1,     iOS 12.5.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously     crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may     have been actively exploited.. (CVE-2021-30661)

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in Safari     14.0. Processing maliciously crafted web content may lead to code execution. (CVE-2020-9983)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	名前	製品	ファミリー	公開日	更新日	深刻度
143260	Debian DSA-4797-1 : webkit2gtk - security update	Nessus	Debian Local Security Checks	2020/11/25	2024/2/8	high
145331	openSUSE Security Update : webkit2gtk3 (openSUSE-2020-2310)	Nessus	SuSE Local Security Checks	2021/1/25	2024/1/26	high
149698	RHEL 8 : GNOME (RHSA-2021:1586)	Nessus	Red Hat Local Security Checks	2021/5/19	2025/3/19	high
144432	SUSE SLED15 / SLES15 Security Update : webkit2gtk3 (SUSE-SU-2020:3867-1)	Nessus	SuSE Local Security Checks	2020/12/18	2024/2/1	high
276044	TencentOS Server 2: webkitgtk4 (TSSA-2025:0554)	Nessus	Tencent Local Security Checks	2025/11/20	2026/3/7	critical
144597	GLSA-202012-10 : WebkitGTK+: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2020/12/24	2024/1/31	high
145374	openSUSE Security Update : webkit2gtk3 (openSUSE-2020-2304)	Nessus	SuSE Local Security Checks	2021/1/25	2024/1/26	high
149947	Oracle Linux 8 : GNOME (ELSA-2021-1586)	Nessus	Oracle Linux Local Security Checks	2021/5/26	2024/11/1	high
160755	NewStart CGSL MAIN 6.02 : webkit2gtk3 Multiple Vulnerabilities (NS-SA-2022-0048)	Nessus	NewStart CGSL Local Security Checks	2022/5/9	2023/4/25	high
144427	SUSE SLED15 / SLES15 Security Update : webkit2gtk3 (SUSE-SU-2020:3864-1)	Nessus	SuSE Local Security Checks	2020/12/18	2024/2/1	high
255653	Linux Distros Unpatched Vulnerability : CVE-2020-9983	Nessus	Misc.	2025/8/26	2026/7/17	high

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