CVE-2020-6801 — Out-of-bounds Write in Mozilla Firefox

CWE-787 — Out-of-bounds WriteCWE-120 — Classic Buffer OverflowCWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer9 documents8 sources
Severity
8.8HIGHNVD
EPSS
0.6%
top 31.18%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Mozilla FirefoxDebian FirefoxCanonical Ubuntu Linux
Timeline
PublishedMar 2
Latest updateMay 24

Description

Mozilla developers reported memory safety bugs present in Firefox 72. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 73.

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

▶CVEListV5mozilla/firefoxunspecified — 73
▶NVDmozilla/firefox< 73.0
▶Ubuntumozilla/firefox< 73.0.1+build1-0ubuntu0.16.04.1+1
▶mozillamozilla/firefox
▶debiandebian/firefox< firefox 73.0-1 (sid)

Also affects: Ubuntu Linux 16.04

🔴Vulnerability Details

2
GHSA
GHSA-gx87-4m2g-vcf2: Mozilla developers reported memory safety bugs present in Firefox 72↗2022-05-24
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OSV
CVE-2020-6801: Mozilla developers reported memory safety bugs present in Firefox 72↗2020-02-11
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📋Vendor Advisories

5
Ubuntu
Firefox vulnerabilities↗2020-02-26
▶
Ubuntu
Firefox vulnerabilities↗2020-02-13
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Red Hat
Mozilla: Memory safety bugs fixed in Firefox 73↗2020-02-11
▶
Debian
CVE-2020-6801: firefox - Mozilla developers reported memory safety bugs present in Firefox 72. Some of th...↗2020
▶
Mozilla
Mozilla Foundation Security Advisory 2020-05: CVE-2020-6801↗
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💬Community

1
Bugzilla
CVE-2020-6801 Mozilla: Memory safety bugs fixed in Firefox 73↗2020-04-28
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CVE-2020-6801 — Out-of-bounds Write in Mozilla Firefox | cvebase