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gentooGentoo FoundationGLSA-202101-04
HistoryJan 10, 2021 - 12:00 a.m.

Mozilla Firefox: Remote code execution

2021-01-1000:00:00
Gentoo Foundation
security.gentoo.org
75

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

0.002 Low

EPSS

Percentile

51.4%

JSON

Background

Mozilla Firefox is a popular open-source web browser from the Mozilla project.

Description

A use-after-free bug was discovered in Mozilla Firefox’s handling of SCTP.

Impact

A remote attacker could possibly execute arbitrary code with the privileges of the process, or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Firefox ESR users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose
 ">=www-client/firefox-78.6.1:0/esr78"

All Firefox ESR binary users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose
 ">=www-client/firefox-bin-78.6.1:0/esr78"

All Firefox users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-client/firefox-84.0.2"

All Firefox binary users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-client/firefox-bin-84.0.2"
OSVersionArchitecturePackageVersionFilename
Gentooanyallwww-client/firefox< 84.0.2UNKNOWN
Gentooanyallwww-client/firefox-bin< 84.0.2UNKNOWN

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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

0.002 Low

EPSS

Percentile

51.4%

JSON
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