CVE-2021-21862

NameCVE-2021-21862
DescriptionMultiple exploitable integer truncation vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input can cause an improper memory allocation resulting in a heap-based buffer overflow that causes memory corruption The implementation of the parser used for the “Xtra” FOURCC code is handled. An attacker can convince a user to open a video to trigger this vulnerability.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
gpac (PTS)bullseye (security), bullseye1.0.1+dfsg1-4+deb11u3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
gpacsource(unstable)(not affected)

Notes

- gpac <not-affected> (Vulnerable code not present)
Introduced in https://github.com/gpac/gpac/commit/69ae9059fc
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1298
https://github.com/gpac/gpac/commit/8cd33e8977fd5f4215e4b67c309fd403762bfeb7
https://github.com/gpac/gpac/issues/1814

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