CVE-2021-23981

NameCVE-2021-23981
DescriptionA texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR < 78.9, Thunderbird < 78.9, and Firefox < 87.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2607-1, DLA-2609-1, DSA-4874-1, DSA-4876-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid88.0.1-1fixed
firefox-esr (PTS)stretch68.10.0esr-1~deb9u1vulnerable
stretch (security)78.10.0esr-1~deb9u1fixed
buster78.8.0esr-1~deb10u1vulnerable
buster (security)78.10.0esr-1~deb10u1fixed
bullseye, sid78.10.0esr-1fixed
thunderbird (PTS)stretch1:68.10.0-1~deb9u1vulnerable
stretch (security)1:78.10.0-1~deb9u1fixed
buster1:78.6.0-1~deb10u1vulnerable
buster (security)1:78.10.0-1~deb10u1fixed
bullseye, sid1:78.10.0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)87.0-1
firefox-esrsourcestretch78.9.0esr-1~deb9u1DLA-2607-1
firefox-esrsourcebuster78.9.0esr-1~deb10u1DSA-4874-1
firefox-esrsource(unstable)78.9.0esr-1
thunderbirdsourcestretch1:78.9.0-1~deb9u1DLA-2609-1
thunderbirdsourcebuster1:78.9.0-1~deb10u1DSA-4876-1
thunderbirdsource(unstable)1:78.9.0-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2021-10/#CVE-2021-23981
https://www.mozilla.org/en-US/security/advisories/mfsa2021-11/#CVE-2021-23981
https://www.mozilla.org/en-US/security/advisories/mfsa2021-12/#CVE-2021-23981

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