CVE-2020-26952 — Out-of-bounds Write in Mozilla Firefox

CWE-787 — Out-of-bounds Write7 documents6 sources
Severity
8.8HIGHNVD
EPSS
0.4%
top 37.87%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla FirefoxDebian Firefox
Timeline
PublishedDec 9
Latest updateMay 24

Description

Incorrect bookkeeping of functions inlined during JIT compilation could have led to memory corruption and a potentially exploitable crash when handling out-of-memory errors. This vulnerability affects Firefox < 83.

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 Packages5 packages

▶debiandebian/firefox< firefox 83.0-1 (sid)
▶CVEListV5mozilla/firefox< 83
▶NVDmozilla/firefox< 83.0
▶Ubuntumozilla/firefox< 83.0+build2-0ubuntu0.16.04.3+2
▶mozillamozilla/firefox

🔴Vulnerability Details

2
GHSA
GHSA-gqgc-5jm8-qf2w: Incorrect bookkeeping of functions inlined during JIT compilation could have led to memory corruption and a potentially exploitable crash when handlin↗2022-05-24
▶
OSV
CVE-2020-26952: Incorrect bookkeeping of functions inlined during JIT compilation could have led to memory corruption and a potentially exploitable crash when handlin↗2020-11-17
▶

📋Vendor Advisories

4
Ubuntu
Firefox vulnerabilities↗2020-11-19
▶
Ubuntu
Firefox vulnerabilities↗2020-11-18
▶
Debian
CVE-2020-26952: firefox - Incorrect bookkeeping of functions inlined during JIT compilation could have led...↗2020
▶
Mozilla
Mozilla Foundation Security Advisory 2020-50: CVE-2020-26952↗
▶