Debian DLA-2448-1: firefox-esr セキュリティ更新

high Nessus プラグイン ID 142849
New! プラグインの深刻度には CVSS v3 が適用されるようになりました。

プラグインの深刻度は、デフォルトで CVSS v3 を使って計算されるように更新されました。プラグインに CVSS v3 スコアがない場合には、CVSS v2 を使って深刻度が計算されます。深刻度の表示設定は、[設定]のドロップダウンで切り替えができます。

概要

リモートの Debian ホストにセキュリティ更新プログラムがありません。

説明

Mozilla Firefox WebブラウザにUse-After-Freeが見つかり、これによって任意コードを実行される可能性があります。

Debian 9「Stretch」では、この問題はバージョン78.4.1esr-1~deb9u1で修正されています。

お使いのfirefox-esrパッケージのアップグレードをお勧めします。

firefox-esrの詳細なセキュリティステータスについては、そのセキュリティトラッカーページを参照してください:
https://security-tracker.debian.org/tracker/firefox-esr

注: Tenable Network Securityは、前述の記述ブロックを DLA セキュリティアドバイザリから直接抽出しています。Tenableでは、新たな問題を持ち込まずに、できる限り自動的に整理して書式設定するようにしています。

ソリューション

影響を受けるパッケージをアップグレードしてください。

関連情報

https://lists.debian.org/debian-lts-announce/2020/11/msg00022.html

https://packages.debian.org/source/stretch/firefox-esr

https://security-tracker.debian.org/tracker/source-package/firefox-esr

プラグインの詳細

深刻度: High

ID: 142849

ファイル名: debian_DLA-2448.nasl

バージョン: 1.5

タイプ: local

エージェント: unix

公開日: 2020/11/12

更新日: 2020/12/14

依存関係: ssh_get_info.nasl

リスク情報

VPR

リスクファクター: Medium

スコア: 6.7

CVSS v2

リスクファクター: High

Base Score: 9.3

Temporal Score: 6.9

ベクトル: AV:N/AC:M/Au:N/C:C/I:C/A:C

現状ベクトル: E:U/RL:OF/RC:C

CVSS v3

リスクファクター: High

Base Score: 8.8

Temporal Score: 7.7

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

現状ベクトル: E:U/RL:O/RC:C

脆弱性情報

CPE: p-cpe:/a:debian:debian_linux:firefox-esr, p-cpe:/a:debian:debian_linux:firefox-esr-dev, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ach, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-af, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-all, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-an, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ar, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-as, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ast, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-az, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-bg, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-bn-bd, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-bn-in, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-br, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-bs, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ca, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-cak, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-cs, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-cy, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-da, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-de, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-dsb, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-el, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-en-gb, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-en-za, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-eo, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-es-ar, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-es-cl, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-es-es, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-es-mx, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-et, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-eu, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-fa, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ff, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-fi, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-fr, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-fy-nl, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ga-ie, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-gd, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-gl, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-gn, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-gu-in, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-he, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-hi-in, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-hr, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-hsb, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-hu, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-hy-am, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-id, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-is, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-it, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ja, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ka, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-kab, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-kk, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-km, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-kn, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ko, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-lij, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-lt, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-lv, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-mai, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-mk, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ml, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-mr, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ms, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-nb-no, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-nl, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-nn-no, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-or, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-pa-in, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-pl, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-pt-br, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-pt-pt, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-rm, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ro, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ru, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-si, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-sk, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-sl, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-son, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-sq, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-sr, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-sv-se, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-ta, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-te, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-th, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-tr, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-uk, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-uz, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-vi, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-xh, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-zh-cn, p-cpe:/a:debian:debian_linux:firefox-esr-l10n-zh-tw, p-cpe:/a:debian:debian_linux:iceweasel, p-cpe:/a:debian:debian_linux:iceweasel-dev, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ach, p-cpe:/a:debian:debian_linux:iceweasel-l10n-af, p-cpe:/a:debian:debian_linux:iceweasel-l10n-all, p-cpe:/a:debian:debian_linux:iceweasel-l10n-an, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ar, p-cpe:/a:debian:debian_linux:iceweasel-l10n-as, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ast, p-cpe:/a:debian:debian_linux:iceweasel-l10n-az, p-cpe:/a:debian:debian_linux:iceweasel-l10n-bg, p-cpe:/a:debian:debian_linux:iceweasel-l10n-bn-bd, p-cpe:/a:debian:debian_linux:iceweasel-l10n-bn-in, p-cpe:/a:debian:debian_linux:iceweasel-l10n-br, p-cpe:/a:debian:debian_linux:iceweasel-l10n-bs, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ca, p-cpe:/a:debian:debian_linux:iceweasel-l10n-cak, p-cpe:/a:debian:debian_linux:iceweasel-l10n-cs, p-cpe:/a:debian:debian_linux:iceweasel-l10n-cy, p-cpe:/a:debian:debian_linux:iceweasel-l10n-da, p-cpe:/a:debian:debian_linux:iceweasel-l10n-de, p-cpe:/a:debian:debian_linux:iceweasel-l10n-dsb, p-cpe:/a:debian:debian_linux:iceweasel-l10n-el, p-cpe:/a:debian:debian_linux:iceweasel-l10n-en-gb, p-cpe:/a:debian:debian_linux:iceweasel-l10n-en-za, p-cpe:/a:debian:debian_linux:iceweasel-l10n-eo, p-cpe:/a:debian:debian_linux:iceweasel-l10n-es-ar, p-cpe:/a:debian:debian_linux:iceweasel-l10n-es-cl, p-cpe:/a:debian:debian_linux:iceweasel-l10n-es-es, p-cpe:/a:debian:debian_linux:iceweasel-l10n-es-mx, p-cpe:/a:debian:debian_linux:iceweasel-l10n-et, p-cpe:/a:debian:debian_linux:iceweasel-l10n-eu, p-cpe:/a:debian:debian_linux:iceweasel-l10n-fa, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ff, p-cpe:/a:debian:debian_linux:iceweasel-l10n-fi, p-cpe:/a:debian:debian_linux:iceweasel-l10n-fr, p-cpe:/a:debian:debian_linux:iceweasel-l10n-fy-nl, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ga-ie, p-cpe:/a:debian:debian_linux:iceweasel-l10n-gd, p-cpe:/a:debian:debian_linux:iceweasel-l10n-gl, p-cpe:/a:debian:debian_linux:iceweasel-l10n-gn, p-cpe:/a:debian:debian_linux:iceweasel-l10n-gu-in, p-cpe:/a:debian:debian_linux:iceweasel-l10n-he, p-cpe:/a:debian:debian_linux:iceweasel-l10n-hi-in, p-cpe:/a:debian:debian_linux:iceweasel-l10n-hr, p-cpe:/a:debian:debian_linux:iceweasel-l10n-hsb, p-cpe:/a:debian:debian_linux:iceweasel-l10n-hu, p-cpe:/a:debian:debian_linux:iceweasel-l10n-hy-am, p-cpe:/a:debian:debian_linux:iceweasel-l10n-id, p-cpe:/a:debian:debian_linux:iceweasel-l10n-is, p-cpe:/a:debian:debian_linux:iceweasel-l10n-it, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ja, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ka, p-cpe:/a:debian:debian_linux:iceweasel-l10n-kab, p-cpe:/a:debian:debian_linux:iceweasel-l10n-kk, p-cpe:/a:debian:debian_linux:iceweasel-l10n-km, p-cpe:/a:debian:debian_linux:iceweasel-l10n-kn, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ko, p-cpe:/a:debian:debian_linux:iceweasel-l10n-lij, p-cpe:/a:debian:debian_linux:iceweasel-l10n-lt, p-cpe:/a:debian:debian_linux:iceweasel-l10n-lv, p-cpe:/a:debian:debian_linux:iceweasel-l10n-mai, p-cpe:/a:debian:debian_linux:iceweasel-l10n-mk, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ml, p-cpe:/a:debian:debian_linux:iceweasel-l10n-mr, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ms, p-cpe:/a:debian:debian_linux:iceweasel-l10n-nb-no, p-cpe:/a:debian:debian_linux:iceweasel-l10n-nl, p-cpe:/a:debian:debian_linux:iceweasel-l10n-nn-no, p-cpe:/a:debian:debian_linux:iceweasel-l10n-or, p-cpe:/a:debian:debian_linux:iceweasel-l10n-pa-in, p-cpe:/a:debian:debian_linux:iceweasel-l10n-pl, p-cpe:/a:debian:debian_linux:iceweasel-l10n-pt-br, p-cpe:/a:debian:debian_linux:iceweasel-l10n-pt-pt, p-cpe:/a:debian:debian_linux:iceweasel-l10n-rm, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ro, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ru, p-cpe:/a:debian:debian_linux:iceweasel-l10n-si, p-cpe:/a:debian:debian_linux:iceweasel-l10n-sk, p-cpe:/a:debian:debian_linux:iceweasel-l10n-sl, p-cpe:/a:debian:debian_linux:iceweasel-l10n-son, p-cpe:/a:debian:debian_linux:iceweasel-l10n-sq, p-cpe:/a:debian:debian_linux:iceweasel-l10n-sr, p-cpe:/a:debian:debian_linux:iceweasel-l10n-sv-se, p-cpe:/a:debian:debian_linux:iceweasel-l10n-ta, p-cpe:/a:debian:debian_linux:iceweasel-l10n-te, p-cpe:/a:debian:debian_linux:iceweasel-l10n-th, p-cpe:/a:debian:debian_linux:iceweasel-l10n-tr, p-cpe:/a:debian:debian_linux:iceweasel-l10n-uk, p-cpe:/a:debian:debian_linux:iceweasel-l10n-uz, p-cpe:/a:debian:debian_linux:iceweasel-l10n-vi, p-cpe:/a:debian:debian_linux:iceweasel-l10n-xh, p-cpe:/a:debian:debian_linux:iceweasel-l10n-zh-cn, p-cpe:/a:debian:debian_linux:iceweasel-l10n-zh-tw, cpe:/o:debian:debian_linux:9.0

必要な KB アイテム: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

エクスプロイトの容易さ: No known exploits are available

パッチ公開日: 2020/11/11

脆弱性公開日: 2020/12/9

参照情報

CVE: CVE-2020-26950

IAVA: 2020-A-0531-S