CVE - CVE-2023-6857

CVE-ID
CVE-2023-6857	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
When resolving a symlink, a race may occur where the buffer passed to `readlink` may 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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
DEBIAN:DSA-5581 URL:https://www.debian.org/security/2023/dsa-5581 DEBIAN:DSA-5582 URL:https://www.debian.org/security/2023/dsa-5582 GENTOO:GLSA-202401-10 URL:https://security.gentoo.org/glsa/202401-10 MISC:https://bugzilla.mozilla.org/show_bug.cgi?id=1796023 URL:https://bugzilla.mozilla.org/show_bug.cgi?id=1796023 MISC:https://www.mozilla.org/security/advisories/mfsa2023-54/ URL:https://www.mozilla.org/security/advisories/mfsa2023-54/ MISC:https://www.mozilla.org/security/advisories/mfsa2023-55/ URL:https://www.mozilla.org/security/advisories/mfsa2023-55/ MISC:https://www.mozilla.org/security/advisories/mfsa2023-56/ URL:https://www.mozilla.org/security/advisories/mfsa2023-56/ MLIST:[debian-lts-announce] 20231229 [SECURITY] [DLA 3697-1] firefox-esr security update URL:https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html MLIST:[debian-lts-announce] 20231229 [SECURITY] [DLA 3698-1] thunderbird security update URL:https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html
Assigning CNA
Mozilla Corporation
Date Record Created
20231215	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20231215)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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