CVE-2021-45940

NameCVE-2021-45940
Descriptionlibbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (4 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libbpf (PTS)bullseye0.3-2vulnerable
bookworm, sid0.8.0-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libbpfsource(unstable)(unfixed)

Notes

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40868
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libbpf/OSV-2021-1562.yaml
check details on fixing commit upstream, furthermore intorducing commit is only when oss-fuzz started

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