Vulnerability · NVD

CVE-2023-6857

CVE-2023-6857, medium severity (CVSS 5.3): 2 tracked apps concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 5.3
Exploitation: 0.7 %
Tracked apps: 2
Still exposed: 0

Published on 2023-12-19

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.

Attack vector : Network No privileges required

Show raw CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS 0.66% exploit very unlikely percentile 49.8%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Mozilla Firefox Windows winget:Mozilla.Firefox

Affected <121.0 Fixed in 121.0 Latest tracked 157.0 patched

Observed affected builds (70)

120.0.1 120.0 119.0.1 119.0 118.0.2 118.0.1 118.0 117.0.1 117.0 116.0.3 116.0.2 116.0.1 116.0 115.0.3 115.0.2 115.0.1 115.0 114.0.2 114.0.1 113.0.2 113.0.1 113.0 112.0.2 112.0.1 112.0 111.0.1 111.0 110.0.1 110.0 109.0.1 +40 · see history
Mozilla Thunderbird Windows winget:Mozilla.Thunderbird

Affected <115.6 Fixed in 115.6 Latest tracked 156.0.1 patched

Observed affected builds (72)

115.5.2 115.5.1 115.4.2 115.4.1 115.3.3 115.3.2 115.3.1 115.3.0 115.2.3 115.2.2 115.0 102.15.0 102.14.0 102.13.0 102.12.0 102.11.2 102.11.1 102.11.0 102.10.1 102.10.0 102.9.1 102.9.0 102.8.0 102.7.2 102.7.1 102.7.0 102.6.1 102.6.0 102.5.1 102.5.0 +42 · see history

NVD references 7 distinct products for this CVE : only those tracked by Scout (mobile and desktop catalog apps) are listed above. Libraries, servers and out-of-scope products do not appear here. Full list on NVD ↗

Vulnerable CPE configurations (2)

Vendor	Product	Platform	Versions	CPE 2.3 URI
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	<121.0	cpe:2.3:a:mozilla:firefox::::::::
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	<115.6	cpe:2.3:a:mozilla:thunderbird::::::::

View on NVD ↗ Advisory · www.mozilla.org

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