Vulnerability · NVD

CVE-2021-29986

CVE-2021-29986, high severity (CVSS 8.1): 2 tracked apps concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 8.1
Exploitation: 1.3 %
Tracked apps: 2
Still exposed: 0

Published on 2021-08-17

A suspected race condition when calling getaddrinfo led to memory corruption and a potentially exploitable crash. *Note: This issue only affected Linux operating systems. Other operating systems are unaffected.* This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.

Attack vector : Network No privileges required No user interaction

Show raw CVSS vector

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

EPSS 1.26% above median percentile 68.9%

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 <91.0 Fixed in 91.0 Latest tracked 157.0.1 patched
Mozilla Thunderbird Windows winget:Mozilla.Thunderbird

Affected <78.13.0 Fixed in 78.13.0 Latest tracked 157.0.1 patched

Observed affected builds (19)

78.12.0 78.11.0 78.10.2 78.10.1 78.10.0 78.9.1 78.8.1 78.7.1 78.6.1 78.4.0 78.3.2 78.2.1 78.1.1 78.1.0 78.0.1 78.0 68.10.0 68.9.0 68.8.0

Vulnerable CPE configurations (2)

Vendor	Product	Platform	Versions	CPE 2.3 URI
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	<91.0	cpe:2.3:a:mozilla:firefox::::::::
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	<78.13.0	cpe:2.3:a:mozilla:thunderbird::::::::

View on NVD ↗ Advisory · bugzilla.mozilla.org Advisory · www.mozilla.org

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