Vulnerabilities > CVE-2021-38504 - Use After Free vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://www.mozilla.org/security/advisories/mfsa2021-50/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1730156
- https://www.mozilla.org/security/advisories/mfsa2021-49/
- https://www.mozilla.org/security/advisories/mfsa2021-48/
- https://www.debian.org/security/2021/dsa-5026
- https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html
- https://www.debian.org/security/2022/dsa-5034
- https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
- https://security.gentoo.org/glsa/202202-03
- https://security.gentoo.org/glsa/202208-14