openSUSE セキュリティ更新:Linux カーネル(openSUSE-2016-256)

high Nessus プラグイン ID 88927

概要

リモート openSUSE ホストに、セキュリティ更新がありません。

説明

openSUSE 13.2 カーネルが更新され、セキュリティおよびバグの修正を受けています。

これは、Chromium サンドボックスを機能させなくした回帰も修正します(bsc#965356)。

以下のセキュリティのバグが修正されました:

- CVE-2016-2069:Linux がページング構造を処理する方法に欠陥が発見されました。Linux がローカルに使用されていないページング構造を無効にする場合、問題のページング構造を使用するプロセスにスイッチしている別の CPU に対して原則として競合する可能性があり、これによりローカルのサービス拒否(マシンクラッシュ)が発生します。
(bnc#963767)。

- CVE-2016-0723:Linux カーネルの drivers/tty/tty_io.c の tty_ioctl 関数の競合状態により、ローカルユーザーが、TIOCSETD ioctl 呼び出しの処理中に TIOCGETD ioctl 呼び出しを行うことで、カーネルメモリから機密情報を入手したり、サービス拒否(use-after-free およびシステムクラッシュ)を引き起こすことが可能でした(bnc#961500)。

以下の非セキュリティ問題が修正されました。

- Bluetooth:ath3k:xHCI コントローラーにある互換性の問題の回避策を講じます(bnc#907378)。

- user_namespace.flags フィールドを追加するkABI の修正(bnc#965308、bnc#965356)。

- userns:ノブを追加し、ユーザーごとの名前空間ベースで setgroups を無効にします(bnc#965308、bnc#965356)。

- userns:setgroups が無効の場合に、権限なしで gid_maps の設定を行えるようにします(bnc#965308、bnc#965356)。

- userns:id_map_mutex を userns_state_mutex という名前に変更します(bnc#965308、bnc#965356)。

ソリューション

影響を受ける Linux カーネルパッケージを更新してください。

参考資料

https://bugzilla.opensuse.org/show_bug.cgi?id=907378

https://bugzilla.opensuse.org/show_bug.cgi?id=961500

https://bugzilla.opensuse.org/show_bug.cgi?id=963767

https://bugzilla.opensuse.org/show_bug.cgi?id=965308

https://bugzilla.opensuse.org/show_bug.cgi?id=965356

プラグインの詳細

深刻度: High

ID: 88927

ファイル名: openSUSE-2016-256.nasl

バージョン: 2.5

タイプ: local

エージェント: unix

公開日: 2016/2/24

更新日: 2021/1/19

サポートされているセンサー: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Nessus

リスク情報

VPR

リスクファクター: Medium

スコア: 5.9

CVSS v2

リスクファクター: Medium

Base Score: 5.6

ベクトル: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:C

CVSS v3

リスクファクター: High

Base Score: 7.4

ベクトル: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

脆弱性情報

CPE: p-cpe:/a:novell:opensuse:bbswitch, p-cpe:/a:novell:opensuse:bbswitch-debugsource, p-cpe:/a:novell:opensuse:bbswitch-kmp-default, p-cpe:/a:novell:opensuse:bbswitch-kmp-default-debuginfo, p-cpe:/a:novell:opensuse:bbswitch-kmp-desktop, p-cpe:/a:novell:opensuse:bbswitch-kmp-desktop-debuginfo, p-cpe:/a:novell:opensuse:bbswitch-kmp-pae, p-cpe:/a:novell:opensuse:bbswitch-kmp-pae-debuginfo, p-cpe:/a:novell:opensuse:bbswitch-kmp-xen, p-cpe:/a:novell:opensuse:bbswitch-kmp-xen-debuginfo, p-cpe:/a:novell:opensuse:cloop, p-cpe:/a:novell:opensuse:cloop-debuginfo, p-cpe:/a:novell:opensuse:cloop-debugsource, p-cpe:/a:novell:opensuse:cloop-kmp-default, p-cpe:/a:novell:opensuse:cloop-kmp-default-debuginfo, p-cpe:/a:novell:opensuse:cloop-kmp-desktop, p-cpe:/a:novell:opensuse:kernel-obs-build, p-cpe:/a:novell:opensuse:kernel-obs-build-debugsource, p-cpe:/a:novell:opensuse:kernel-obs-qa, p-cpe:/a:novell:opensuse:kernel-obs-qa-xen, p-cpe:/a:novell:opensuse:kernel-pae, p-cpe:/a:novell:opensuse:kernel-pae-base, p-cpe:/a:novell:opensuse:kernel-pae-base-debuginfo, p-cpe:/a:novell:opensuse:kernel-pae-debuginfo, p-cpe:/a:novell:opensuse:kernel-pae-debugsource, p-cpe:/a:novell:opensuse:kernel-pae-devel, p-cpe:/a:novell:opensuse:kernel-source, p-cpe:/a:novell:opensuse:kernel-source-vanilla, p-cpe:/a:novell:opensuse:kernel-syms, p-cpe:/a:novell:opensuse:kernel-vanilla, p-cpe:/a:novell:opensuse:kernel-vanilla-debuginfo, p-cpe:/a:novell:opensuse:kernel-vanilla-debugsource, p-cpe:/a:novell:opensuse:kernel-vanilla-devel, p-cpe:/a:novell:opensuse:kernel-xen, p-cpe:/a:novell:opensuse:kernel-xen-base, p-cpe:/a:novell:opensuse:cloop-kmp-desktop-debuginfo, p-cpe:/a:novell:opensuse:cloop-kmp-pae, p-cpe:/a:novell:opensuse:cloop-kmp-pae-debuginfo, p-cpe:/a:novell:opensuse:cloop-kmp-xen, p-cpe:/a:novell:opensuse:cloop-kmp-xen-debuginfo, p-cpe:/a:novell:opensuse:crash, p-cpe:/a:novell:opensuse:crash-debuginfo, p-cpe:/a:novell:opensuse:crash-debugsource, p-cpe:/a:novell:opensuse:crash-devel, p-cpe:/a:novell:opensuse:crash-eppic, p-cpe:/a:novell:opensuse:crash-eppic-debuginfo, p-cpe:/a:novell:opensuse:crash-gcore, p-cpe:/a:novell:opensuse:crash-gcore-debuginfo, p-cpe:/a:novell:opensuse:crash-kmp-default, p-cpe:/a:novell:opensuse:crash-kmp-default-debuginfo, p-cpe:/a:novell:opensuse:crash-kmp-desktop, p-cpe:/a:novell:opensuse:crash-kmp-desktop-debuginfo, p-cpe:/a:novell:opensuse:crash-kmp-pae, p-cpe:/a:novell:opensuse:crash-kmp-pae-debuginfo, p-cpe:/a:novell:opensuse:crash-kmp-xen, p-cpe:/a:novell:opensuse:crash-kmp-xen-debuginfo, p-cpe:/a:novell:opensuse:hdjmod-debugsource, p-cpe:/a:novell:opensuse:hdjmod-kmp-default, p-cpe:/a:novell:opensuse:hdjmod-kmp-default-debuginfo, p-cpe:/a:novell:opensuse:hdjmod-kmp-desktop, p-cpe:/a:novell:opensuse:hdjmod-kmp-desktop-debuginfo, p-cpe:/a:novell:opensuse:hdjmod-kmp-pae, p-cpe:/a:novell:opensuse:hdjmod-kmp-pae-debuginfo, p-cpe:/a:novell:opensuse:hdjmod-kmp-xen, p-cpe:/a:novell:opensuse:hdjmod-kmp-xen-debuginfo, p-cpe:/a:novell:opensuse:ipset, p-cpe:/a:novell:opensuse:ipset-debuginfo, p-cpe:/a:novell:opensuse:ipset-debugsource, p-cpe:/a:novell:opensuse:ipset-devel, p-cpe:/a:novell:opensuse:ipset-kmp-default, p-cpe:/a:novell:opensuse:ipset-kmp-default-debuginfo, p-cpe:/a:novell:opensuse:ipset-kmp-desktop, p-cpe:/a:novell:opensuse:ipset-kmp-desktop-debuginfo, p-cpe:/a:novell:opensuse:ipset-kmp-pae, p-cpe:/a:novell:opensuse:ipset-kmp-pae-debuginfo, p-cpe:/a:novell:opensuse:ipset-kmp-xen, p-cpe:/a:novell:opensuse:ipset-kmp-xen-debuginfo, p-cpe:/a:novell:opensuse:kernel-debug, p-cpe:/a:novell:opensuse:kernel-debug-base, p-cpe:/a:novell:opensuse:kernel-debug-base-debuginfo, p-cpe:/a:novell:opensuse:kernel-debug-debuginfo, p-cpe:/a:novell:opensuse:kernel-debug-debugsource, p-cpe:/a:novell:opensuse:kernel-debug-devel, p-cpe:/a:novell:opensuse:kernel-debug-devel-debuginfo, p-cpe:/a:novell:opensuse:kernel-default, p-cpe:/a:novell:opensuse:kernel-default-base, p-cpe:/a:novell:opensuse:kernel-default-base-debuginfo, p-cpe:/a:novell:opensuse:kernel-default-debuginfo, p-cpe:/a:novell:opensuse:kernel-default-debugsource, p-cpe:/a:novell:opensuse:kernel-default-devel, p-cpe:/a:novell:opensuse:kernel-desktop, p-cpe:/a:novell:opensuse:kernel-desktop-base, p-cpe:/a:novell:opensuse:kernel-desktop-base-debuginfo, p-cpe:/a:novell:opensuse:kernel-desktop-debuginfo, p-cpe:/a:novell:opensuse:kernel-desktop-debugsource, p-cpe:/a:novell:opensuse:kernel-desktop-devel, p-cpe:/a:novell:opensuse:kernel-devel, p-cpe:/a:novell:opensuse:kernel-ec2, p-cpe:/a:novell:opensuse:kernel-ec2-base, p-cpe:/a:novell:opensuse:kernel-ec2-base-debuginfo, p-cpe:/a:novell:opensuse:kernel-ec2-debuginfo, p-cpe:/a:novell:opensuse:kernel-ec2-debugsource, p-cpe:/a:novell:opensuse:kernel-ec2-devel, p-cpe:/a:novell:opensuse:kernel-macros, p-cpe:/a:novell:opensuse:vhba-kmp-default, p-cpe:/a:novell:opensuse:vhba-kmp-default-debuginfo, p-cpe:/a:novell:opensuse:kernel-xen-base-debuginfo, p-cpe:/a:novell:opensuse:kernel-xen-debuginfo, p-cpe:/a:novell:opensuse:kernel-xen-debugsource, p-cpe:/a:novell:opensuse:kernel-xen-devel, p-cpe:/a:novell:opensuse:libipset3, p-cpe:/a:novell:opensuse:libipset3-debuginfo, p-cpe:/a:novell:opensuse:pcfclock, p-cpe:/a:novell:opensuse:pcfclock-debuginfo, p-cpe:/a:novell:opensuse:pcfclock-debugsource, p-cpe:/a:novell:opensuse:pcfclock-kmp-default, p-cpe:/a:novell:opensuse:pcfclock-kmp-default-debuginfo, p-cpe:/a:novell:opensuse:pcfclock-kmp-desktop, p-cpe:/a:novell:opensuse:pcfclock-kmp-desktop-debuginfo, p-cpe:/a:novell:opensuse:pcfclock-kmp-pae, p-cpe:/a:novell:opensuse:pcfclock-kmp-pae-debuginfo, p-cpe:/a:novell:opensuse:python-virtualbox, p-cpe:/a:novell:opensuse:python-virtualbox-debuginfo, p-cpe:/a:novell:opensuse:vhba-kmp-debugsource, p-cpe:/a:novell:opensuse:vhba-kmp-desktop, p-cpe:/a:novell:opensuse:vhba-kmp-desktop-debuginfo, p-cpe:/a:novell:opensuse:vhba-kmp-pae, p-cpe:/a:novell:opensuse:vhba-kmp-pae-debuginfo, p-cpe:/a:novell:opensuse:vhba-kmp-xen, p-cpe:/a:novell:opensuse:vhba-kmp-xen-debuginfo, p-cpe:/a:novell:opensuse:virtualbox, p-cpe:/a:novell:opensuse:virtualbox-debuginfo, p-cpe:/a:novell:opensuse:virtualbox-debugsource, p-cpe:/a:novell:opensuse:virtualbox-devel, p-cpe:/a:novell:opensuse:virtualbox-guest-desktop-icons, p-cpe:/a:novell:opensuse:virtualbox-guest-kmp-default, p-cpe:/a:novell:opensuse:virtualbox-guest-kmp-default-debuginfo, p-cpe:/a:novell:opensuse:virtualbox-guest-kmp-desktop, p-cpe:/a:novell:opensuse:virtualbox-guest-kmp-desktop-debuginfo, p-cpe:/a:novell:opensuse:virtualbox-guest-kmp-pae, p-cpe:/a:novell:opensuse:virtualbox-guest-kmp-pae-debuginfo, p-cpe:/a:novell:opensuse:virtualbox-guest-tools, p-cpe:/a:novell:opensuse:virtualbox-guest-tools-debuginfo, p-cpe:/a:novell:opensuse:virtualbox-guest-x11, p-cpe:/a:novell:opensuse:virtualbox-guest-x11-debuginfo, p-cpe:/a:novell:opensuse:virtualbox-host-kmp-default, p-cpe:/a:novell:opensuse:virtualbox-host-kmp-default-debuginfo, p-cpe:/a:novell:opensuse:virtualbox-host-kmp-desktop, p-cpe:/a:novell:opensuse:virtualbox-host-kmp-desktop-debuginfo, p-cpe:/a:novell:opensuse:virtualbox-host-kmp-pae, p-cpe:/a:novell:opensuse:virtualbox-host-kmp-pae-debuginfo, p-cpe:/a:novell:opensuse:virtualbox-host-source, p-cpe:/a:novell:opensuse:virtualbox-qt, p-cpe:/a:novell:opensuse:virtualbox-qt-debuginfo, p-cpe:/a:novell:opensuse:virtualbox-websrv, p-cpe:/a:novell:opensuse:virtualbox-websrv-debuginfo, p-cpe:/a:novell:opensuse:xen, p-cpe:/a:novell:opensuse:xen-debugsource, p-cpe:/a:novell:opensuse:xen-devel, p-cpe:/a:novell:opensuse:xen-doc-html, p-cpe:/a:novell:opensuse:xen-kmp-default, p-cpe:/a:novell:opensuse:xen-kmp-default-debuginfo, p-cpe:/a:novell:opensuse:xen-kmp-desktop, p-cpe:/a:novell:opensuse:xen-kmp-desktop-debuginfo, p-cpe:/a:novell:opensuse:xen-libs, p-cpe:/a:novell:opensuse:xen-libs-32bit, p-cpe:/a:novell:opensuse:xen-libs-debuginfo, p-cpe:/a:novell:opensuse:xen-libs-debuginfo-32bit, p-cpe:/a:novell:opensuse:xen-tools, p-cpe:/a:novell:opensuse:xen-tools-debuginfo, p-cpe:/a:novell:opensuse:xen-tools-domu, p-cpe:/a:novell:opensuse:xen-tools-domu-debuginfo, p-cpe:/a:novell:opensuse:xtables-addons, p-cpe:/a:novell:opensuse:xtables-addons-debuginfo, p-cpe:/a:novell:opensuse:xtables-addons-debugsource, p-cpe:/a:novell:opensuse:xtables-addons-kmp-default, p-cpe:/a:novell:opensuse:xtables-addons-kmp-default-debuginfo, p-cpe:/a:novell:opensuse:xtables-addons-kmp-desktop, p-cpe:/a:novell:opensuse:xtables-addons-kmp-desktop-debuginfo, p-cpe:/a:novell:opensuse:xtables-addons-kmp-pae, p-cpe:/a:novell:opensuse:xtables-addons-kmp-pae-debuginfo, p-cpe:/a:novell:opensuse:xtables-addons-kmp-xen, p-cpe:/a:novell:opensuse:xtables-addons-kmp-xen-debuginfo, cpe:/o:novell:opensuse:13.2

必要な KB アイテム: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

パッチ公開日: 2016/2/22

参照情報

CVE: CVE-2016-0723, CVE-2016-2069