CVE-2020-15674 — Improper Locking in Mozilla Firefox

CWE-667 — Improper LockingCWE-787 — Out-of-bounds WriteCWE-763 — Release of Invalid Pointer or ReferenceCWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer10 documents9 sources
Severity
8.8HIGHNVD
EPSS
0.3%
top 45.75%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla FirefoxDebian Firefox
Timeline
PublishedOct 1
Latest updateMay 24

Description

Mozilla developers reported memory safety bugs present in Firefox 80. 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 < 81.

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 — 81
▶NVDmozilla/firefox< 81.0
▶Ubuntumozilla/firefox< 81.0+build2-0ubuntu0.16.04.1+2
▶mozillamozilla/firefox
▶debiandebian/firefox< firefox 81.0-1 (sid)

🔴Vulnerability Details

2
GHSA
GHSA-f5cj-6cmj-4fh4: Mozilla developers reported memory safety bugs present in Firefox 80↗2022-05-24
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OSV
CVE-2020-15674: Mozilla developers reported memory safety bugs present in Firefox 80↗2020-09-25
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📋Vendor Advisories

4
Red Hat
firefox: memory safety bugs showing evidence of memory corruption leading to run arbitrary code↗2020-10-05
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Ubuntu
Firefox vulnerabilities↗2020-09-28
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Debian
CVE-2020-15674: firefox - Mozilla developers reported memory safety bugs present in Firefox 80. Some of th...↗2020
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Mozilla
Mozilla Foundation Security Advisory 2020-42: CVE-2020-15674↗
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🕵️Threat Intelligence

2
Securelist
IT threat evolution Q3 2020. Non-mobile statistics↗2020-11-20
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Securelist
IT threat evolution Q3 2020. Non-mobile statistics↗2020-11-20
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💬Community

1
Bugzilla
CVE-2020-15674 firefox: memory safety bugs showing evidence of memory corruption leading to run arbitrary code↗2020-10-05
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