[SECURITY] [DSA 4840-1] firefox-esr security update

2021-01-2718:36:58

lists.debian.org

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.003 Low

EPSS

Percentile

68.4%

JSON

Debian Security Advisory DSA-4840-1 [email protected]
https://www.debian.org/security/ Moritz Muehlenhoff
January 27, 2021 https://www.debian.org/security/faq

Package : firefox-esr
CVE ID : CVE-2020-26976 CVE-2021-23953 CVE-2021-23954
CVE-2021-23960 CVE-2021-23964

Multiple security issues have been found in the Mozilla Firefox web
browser, which could potentially result in the execution of arbitrary
code or information disclosure.

For the stable distribution (buster), these problems have been fixed in
version 78.7.0esr-1~deb10u1.

We recommend that you upgrade your firefox-esr packages.

For the detailed security status of firefox-esr please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/firefox-esr

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

OSVersionArchitecturePackageVersionFilename
Debian10allthunderbird-l10n-tr< 1:78.7.0-1~deb10u1thunderbird-l10n-tr_1:78.7.0-1~deb10u1_all.deb
Debian10alliceweasel-l10n-hu< 1:78.7.0esr-1~deb10u1iceweasel-l10n-hu_1:78.7.0esr-1~deb10u1_all.deb
Debian9allfirefox-esr-l10n-gd< 78.7.0esr-1~deb9u1firefox-esr-l10n-gd_78.7.0esr-1~deb9u1_all.deb
Debian10mips64elfirefox-esr-dbgsym< 78.7.0esr-1~deb10u1firefox-esr-dbgsym_78.7.0esr-1~deb10u1_mips64el.deb
Debian10alllightning-l10n-nl< 1:78.7.0-1~deb10u1lightning-l10n-nl_1:78.7.0-1~deb10u1_all.deb
Debian10mipsfirefox-esr-dbgsym< 78.7.0esr-1~deb10u1firefox-esr-dbgsym_78.7.0esr-1~deb10u1_mips.deb
Debian10allthunderbird-l10n-hy-am< 1:78.7.0-1~deb10u1thunderbird-l10n-hy-am_1:78.7.0-1~deb10u1_all.deb
Debian10allfirefox-esr-l10n-sq< 78.7.0esr-1~deb10u1firefox-esr-l10n-sq_78.7.0esr-1~deb10u1_all.deb
Debian9alliceowl-l10n-br< 1:78.7.0-1~deb9u1iceowl-l10n-br_1:78.7.0-1~deb9u1_all.deb
Debian10allfirefox-esr-l10n-ca< 78.7.0esr-1~deb10u1firefox-esr-l10n-ca_78.7.0esr-1~deb10u1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	10	all	thunderbird-l10n-tr	< 1:78.7.0-1~deb10u1	thunderbird-l10n-tr_1:78.7.0-1~deb10u1_all.deb
Debian	10	all	iceweasel-l10n-hu	< 1:78.7.0esr-1~deb10u1	iceweasel-l10n-hu_1:78.7.0esr-1~deb10u1_all.deb
Debian	9	all	firefox-esr-l10n-gd	< 78.7.0esr-1~deb9u1	firefox-esr-l10n-gd_78.7.0esr-1~deb9u1_all.deb
Debian	10	mips64el	firefox-esr-dbgsym	< 78.7.0esr-1~deb10u1	firefox-esr-dbgsym_78.7.0esr-1~deb10u1_mips64el.deb
Debian	10	all	lightning-l10n-nl	< 1:78.7.0-1~deb10u1	lightning-l10n-nl_1:78.7.0-1~deb10u1_all.deb
Debian	10	mips	firefox-esr-dbgsym	< 78.7.0esr-1~deb10u1	firefox-esr-dbgsym_78.7.0esr-1~deb10u1_mips.deb
Debian	10	all	thunderbird-l10n-hy-am	< 1:78.7.0-1~deb10u1	thunderbird-l10n-hy-am_1:78.7.0-1~deb10u1_all.deb
Debian	10	all	firefox-esr-l10n-sq	< 78.7.0esr-1~deb10u1	firefox-esr-l10n-sq_78.7.0esr-1~deb10u1_all.deb
Debian	9	all	iceowl-l10n-br	< 1:78.7.0-1~deb9u1	iceowl-l10n-br_1:78.7.0-1~deb9u1_all.deb
Debian	10	all	firefox-esr-l10n-ca	< 78.7.0esr-1~deb10u1	firefox-esr-l10n-ca_78.7.0esr-1~deb10u1_all.deb