CVE-2021-23975

Name
CVE-2021-23975
Description
The developer page about:memory has a Measure function for exploring what object types the browser has allocated and their sizes. When this function was invoked we incorrectly called the sizeof function, instead of using the API method that checks for invalid pointers. This vulnerability affects Firefox < 86.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1685145
Release Notes https://www.mozilla.org/security/advisories/mfsa2021-07/
GENTOO https://security.gentoo.org/glsa/202104-10

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* firefox >= None < 86.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
librewolf edge-community 87.0-r0 None fixed
librewolf 3.22-community 87.0-r0 None fixed
librewolf 3.21-community 87.0-r0 None fixed
firefox edge-community 87.0-r0 None fixed
firefox edge-community 85.0-r0 None possibly vulnerable
firefox edge-community 84.0.2-r0 None possibly vulnerable
firefox edge-community 84.0.1-r0 None possibly vulnerable
firefox edge-community 83.0-r0 None possibly vulnerable
firefox edge-community 82.0.3-r0 None possibly vulnerable
firefox edge-community 82.0-r0 None possibly vulnerable
firefox edge-community 81.0-r0 None possibly vulnerable
firefox edge-community 80.0-r0 None possibly vulnerable
firefox edge-community 79.0-r0 None possibly vulnerable
firefox edge-community 78.0-r0 None possibly vulnerable
firefox edge-community 77.0-r0 None possibly vulnerable
firefox edge-community 76.0-r0 None possibly vulnerable
firefox edge-community 75.0-r0 None possibly vulnerable
firefox edge-community 74.0.1-r0 None possibly vulnerable
firefox edge-community 74.0-r0 None possibly vulnerable
firefox edge-community 71.0.1-r0 None possibly vulnerable
firefox edge-community 70.0-r0 None possibly vulnerable
firefox edge-community 68.0.2-r0 None possibly vulnerable
firefox 3.22-community 87.0-r0 None fixed
firefox 3.22-community 85.0-r0 None possibly vulnerable
firefox 3.22-community 84.0.2-r0 None possibly vulnerable
firefox 3.22-community 84.0.1-r0 None possibly vulnerable
firefox 3.22-community 83.0-r0 None possibly vulnerable
firefox 3.22-community 82.0.3-r0 None possibly vulnerable
firefox 3.22-community 82.0-r0 None possibly vulnerable
firefox 3.22-community 81.0-r0 None possibly vulnerable
firefox 3.22-community 80.0-r0 None possibly vulnerable
firefox 3.22-community 79.0-r0 None possibly vulnerable
firefox 3.22-community 78.0-r0 None possibly vulnerable
firefox 3.22-community 77.0-r0 None possibly vulnerable
firefox 3.22-community 76.0-r0 None possibly vulnerable
firefox 3.22-community 75.0-r0 None possibly vulnerable
firefox 3.22-community 74.0.1-r0 None possibly vulnerable
firefox 3.22-community 74.0-r0 None possibly vulnerable
firefox 3.22-community 71.0.1-r0 None possibly vulnerable
firefox 3.22-community 70.0-r0 None possibly vulnerable
firefox 3.22-community 68.0.2-r0 None possibly vulnerable
firefox 3.21-community 87.0-r0 None fixed
firefox 3.20-community 87.0-r0 None fixed
firefox 3.19-community 87.0-r0 None fixed
firefox 3.18-community 87.0-r0 None fixed
firefox 3.17-community 87.0-r0 None fixed