Lucene search

K
mageiaGentoo FoundationMGASA-2021-0469
HistoryOct 08, 2021 - 7:27 a.m.

Updated firefox packages fix security vulnerability

2021-10-0807:27:53
Gentoo Foundation
advisories.mageia.org
42
firefox
security
vulnerability
memory corruption
code execution
cve-2021-32810
cve-2021-38496
cve-2021-38497
cve-2021-38498
cve-2021-38500
cve-2021-38501
mozilla
esr 91.1

CVSS2

6.8

Attack Vector

NETWORK

Attack 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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.009

Percentile

82.8%

Due to a data race in the crossbeam-deque in the crossbeam crate, one or more tasks in the worker queue could have been be popped twice instead of other tasks that are forgotten and never popped. If tasks are allocated on the heap, this could have caused a double free and a memory leak (CVE-2021-32810). During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash due to a use-after-free in MessageTask (CVE-2021-38496). Through use of reportValidity() and window.open(), a plain-text validation message could have been overlaid on another origin, leading to possible user confusion and spoofing attacks (CVE-2021-38497). During process shutdown, a document could have caused a use-after-free of a languages service object (nsLanguageAtomService), leading to memory corruption and a potentially exploitable crash (CVE-2021-38498). Mozilla developers and community members Andreas Pehrson, Christian Holler, Kevin Brosnan, and Mihai Alexandru Michis reported memory safety bugs present in 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 (CVE-2021-38500, CVE-2021-38501).

CVSS2

6.8

Attack Vector

NETWORK

Attack 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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.009

Percentile

82.8%