Description
Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier, resulting in memory corruption and a potentially exploitable crash. *Note: this issue only affects Firefox on ARM64 platforms.* This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Mozilla Firefox ESR
unspecified to < 68.10affected
Mozilla Firefox
unspecified to < 78affected
Mozilla Thunderbird
unspecified to < 68.10.0affected
References
- https://www.mozilla.org/security/advisories/mfsa2020-24/ ↗
- https://www.mozilla.org/security/advisories/mfsa2020-26/ ↗
- https://www.mozilla.org/security/advisories/mfsa2020-25/ ↗
- https://bugzilla.mozilla.org/show_bug.cgi?id=1640737 ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html ↗
- https://usn.ubuntu.com/4421-1/ ↗
- https://security.gentoo.org/glsa/202007-09 ↗
- https://security.gentoo.org/glsa/202007-10 ↗