CVE-2025-9817

NameCVE-2025-9817
DescriptionSSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-6124-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
wireshark (PTS)bullseye3.4.10-0+deb11u1fixed
bullseye (security)3.4.16-0+deb11u2fixed
bookworm, bookworm (security)4.0.17-0+deb12u3fixed
trixie (security), trixie4.4.15-0+deb13u1fixed
forky4.6.5-1fixed
sid4.6.6-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
wiresharksourcebullseye(not affected)
wiresharksourcebookworm4.0.17-0+deb12u2
wiresharksourcetrixie4.4.13-0+deb13u1DSA-6124-1
wiresharksource(unstable)4.4.9-1

Notes

[bullseye] - wireshark <not-affected> (Vulnerable code introduced later)
https://www.wireshark.org/security/wnpa-sec-2025-03.html
https://gitlab.com/wireshark/wireshark/-/issues/20642

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