CVE-2021-39923

NameCVE-2021-39923
DescriptionLarge loop in the PNRP dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2849-1, DSA-5019-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
wireshark (PTS)jessie, jessie (lts)1.12.1+g01b65bf-4+deb8u19vulnerable
stretch (security)2.6.20-0+deb9u3fixed
stretch (lts), stretch2.6.20-0+deb10u9~deb9u1fixed
buster, buster (lts)2.6.20-0+deb10u9fixed
buster (security)2.6.20-0+deb10u8fixed
bullseye3.4.10-0+deb11u1fixed
bullseye (security)3.4.16-0+deb11u1fixed
bookworm4.0.17-0+deb12u1fixed
bookworm (security)4.0.11-1~deb12u1fixed
sid, trixie4.4.2-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
wiresharksourcejessie(unfixed)end-of-life
wiresharksourcestretch2.6.20-0+deb9u2DLA-2849-1
wiresharksourcebuster2.6.20-0+deb10u3
wiresharksourcebullseye3.4.10-0+deb11u1DSA-5019-1
wiresharksource(unstable)3.6.0-1

Notes

https://gitlab.com/wireshark/wireshark/-/issues/17684
https://www.wireshark.org/security/wnpa-sec-2021-11.html

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