CVE-2020-15684 — Use After Free in Mozilla Firefox

CWE-416 — Use After FreeCWE-120 — Classic Buffer Overflow8 documents7 sources
Severity
9.8CRITICALNVD
EPSS
0.4%
top 38.08%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla FirefoxDebian Firefox
Timeline
PublishedOct 22
Latest updateMay 24

Description

Mozilla developers reported memory safety bugs present in Firefox 81. 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 < 82.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages5 packages

▶CVEListV5mozilla/firefoxunspecified — 82
▶NVDmozilla/firefox< 82.0
▶Ubuntumozilla/firefox< 82.0+build2-0ubuntu0.16.04.5+2
▶mozillamozilla/firefox
▶debiandebian/firefox< firefox 82.0-1 (sid)

🔴Vulnerability Details

2
GHSA
GHSA-w65j-fpvf-v9rw: Mozilla developers reported memory safety bugs present in Firefox 81↗2022-05-24
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OSV
CVE-2020-15684: Mozilla developers reported memory safety bugs present in Firefox 81↗2020-10-22
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📋Vendor Advisories

5
Ubuntu
Firefox vulnerabilities↗2020-10-26
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Ubuntu
Firefox vulnerabilities↗2020-10-23
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Red Hat
Mozilla: Memory safety bugs fixed in Firefox 82↗2020-10-20
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Debian
CVE-2020-15684: firefox - Mozilla developers reported memory safety bugs present in Firefox 81. Some of th...↗2020
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Mozilla
Mozilla Foundation Security Advisory 2020-45: CVE-2020-15684↗
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