CVE-2023-6857
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-6857
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-6857.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-6857
- Downstream
- Related
- Published
- 2023-12-19T14:15:07Z
- Modified
- 2025-08-09T20:01:27Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
When resolving a symlink, a race may occur where the buffer passed to
readlinkmay actually be smaller than necessary. This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121. - References
-
- https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html
- https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html
- https://security.gentoo.org/glsa/202401-10
- https://www.debian.org/security/2023/dsa-5581
- https://www.debian.org/security/2023/dsa-5582
- https://www.mozilla.org/security/advisories/mfsa2023-54/
- https://www.mozilla.org/security/advisories/mfsa2023-55/
- https://www.mozilla.org/security/advisories/mfsa2023-56/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1796023