CVE-2021-29981 — Mozilla Firefox vulnerability
9 documents6 sources
Severity
8.8HIGHNVD
EPSS
0.4%
top 36.58%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedAug 17
Latest updateMay 24
Description
An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability affects Firefox < 91 and Thunderbird < 91.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9
Affected Packages9 packages
🔴Vulnerability Details
3GHSA▶
GHSA-fxr9-2j9j-f89c: An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lea↗2022-05-24
OSV▶
CVE-2021-29981: An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lea↗2021-08-11
📋Vendor Advisories
5Debian▶
CVE-2021-29981: firefox - An issue present in lowering/register allocation could have led to obscure but d...↗2021