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Debian DLA-2782-1 : firefox-esr - LTS security update

high Nessus Plugin ID 153996

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2782 advisory.

 - Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93. (CVE-2021-38500)

 - During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93. (CVE-2021-38496)

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

Solution

Upgrade the firefox-esr packages.

For Debian 9 stretch, these problems have been fixed in version 78.15.0esr-1~deb9u1.

See Also

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

https://www.debian.org/lts/security/2021/dla-2782

https://security-tracker.debian.org/tracker/CVE-2021-38496

https://security-tracker.debian.org/tracker/CVE-2021-38500

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

Plugin Details

Severity: High

ID: 153996

File Name: debian_DLA-2782.nasl

Version: 1.9

Type: local

Agent: unix

Published: 10/11/2021

Updated: 1/26/2022

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2021-38500

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

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

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/11/2021

Vulnerability Publication Date: 10/5/2021

Reference Information

CVE: CVE-2021-38496, CVE-2021-38500

IAVA: 2021-A-0450-S, 2021-A-0461-S