MGASA-2021-0403 - Updated firefox packages fix security vulnerabilities

Publication date: 14 Aug 2021
URL: https://advisories.mageia.org/MGASA-2021-0403.html
Type: security
Affected Mageia releases: 8
CVE: CVE-2021-XXXX

Updated firefox packages fix security vulnerabilities:

Uninitialized memory in a canvas object could have caused an incorrect
free() leading to memory corruption and a potentially exploitable crash
(CVE-2021-29980).

Instruction reordering during JIT optimization resulted in a sequence of
instructions that would cause an object to be incorrectly considered during
garbage collection. This led to memory corruption and a potentially
exploitable crash (CVE-2021-29984).

A use-after-free vulnerability in media channels could have led to memory
corruption and a potentially exploitable crash (CVE-2021-29985).

A suspected race condition when calling getaddrinfo while resolving DNS
names could have led to memory corruption and a potentially exploitable
crash (CVE-2021-29986).

Firefox incorrectly treated an inline list-item element as a block element,
resulting in an out of bounds read or memory corruption, and a potentially
exploitable crash (CVE-2021-29988).

Mozilla developers Christoph Kerschbaumer, Simon Giesecke, Sandor Molnar,
and Olli Pettay reported memory safety bugs present in Firefox ESR 78.12.
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-2021-29989).

References:
- https://bugs.mageia.org/show_bug.cgi?id=29346
- https://groups.google.com/a/mozilla.org/g/dev-tech-crypto/c/PsqVK-ngKHM
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.69_release_notes
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-34/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-XXXX

SRPMS:
- 8/core/firefox-78.13.0-1.mga8
- 8/core/firefox-l10n-78.13.0-1.mga8
- 8/core/nss-3.69.0-1.mga8