CVE-2023-4049
MEDIUM severity · CVSS 5.9 · CWE-362
5.9CVSS MEDIUM
Summary
Race conditions in reference counting code were found through code inspection. These could have resulted in potentially exploitable use-after-free vulnerabilities. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://www.mozilla.org/security/advisories/mfsa2023-29/Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-30/Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-31/Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1842658
- https://lists.debian.org/debian-lts-announce/2023/08/msg00008.html
- https://lists.debian.org/debian-lts-announce/2023/08/msg00010.html
- https://www.debian.org/security/2023/dsa-5464Advisory
- https://www.debian.org/security/2023/dsa-5469Advisory