CVE-2021-3733

NameCVE-2021-3733
DescriptionDenial of service when identifying crafted invalid RFCs
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
python3.5 (PTS)stretch3.5.3-1+deb9u1vulnerable
stretch (security)3.5.3-1+deb9u4vulnerable
python3.7 (PTS)buster3.7.3-2+deb10u3vulnerable
python3.9 (PTS)bullseye3.9.2-1vulnerable
bookworm, sid3.9.7-4fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
python3.5source(unstable)(unfixed)
python3.7source(unstable)(unfixed)
python3.9source(unstable)3.9.7-1

Notes

[bullseye] - python3.9 <no-dsa> (Minor issue)
[buster] - python3.7 <no-dsa> (Minor issue)
[stretch] - python3.5 <no-dsa> (Minor issue)
https://bugs.python.org/issue43075
https://github.com/python/cpython/pull/24391
https://github.com/python/cpython/commit/7215d1ae25525c92b026166f9d5cac85fb1defe1 (master)
https://github.com/python/cpython/commit/a21d4fbd549ec9685068a113660553d7f80d9b09 (3.9.5)
https://github.com/python/cpython/commit/e7654b6046090914a8323931ed759a94a5f85d60 (3.8.10)
https://github.com/python/cpython/commit/ada14995870abddc277addf57dd690a2af04c2da (3.7.11)
https://github.com/python/cpython/commit/3fbe96123aeb66664fa547a8f6022efa2dc8788f (3.6.14)

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