If an AlignedBuffer were assigned to itself, the subsequent self-move could result in an incorrect reference count and later use-after-free. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.
https://lists.debian.org/debian-lts-announce/2024/04/msg00013.html
https://lists.debian.org/debian-lts-announce/2024/04/msg00012.html
https://www.mozilla.org/security/advisories/mfsa2024-20/
https://www.mozilla.org/security/advisories/mfsa2024-19/
https://www.mozilla.org/security/advisories/mfsa2024-18/
https://bugzilla.mozilla.org/show_bug.cgi?id=1883158
Source: Mitre, NVD
Published: 2024-04-16
Updated: 2025-04-01
Base Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
Severity: Medium
Base Score: 4
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.00078