CVE-2023-29483

NameCVE-2023-29483
Descriptioneventlet before 0.35.2, as used in dnspython before 2.6.0, allows remote attackers to interfere with DNS name resolution by quickly sending an invalid packet from the expected IP address and source port, aka a "TuDoor" attack. In other words, dnspython does not have the preferred behavior in which the DNS name resolution algorithm would proceed, within the full time window, in order to wait for a valid packet. NOTE: dnspython 2.6.0 is unusable for a different reason that was addressed in 2.6.1.
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
dnspython (PTS)jessie1.12.0-1vulnerable
stretch1.15.0-1+deb9u1vulnerable
buster1.16.0-1+deb10u1vulnerable
bullseye2.0.0-1vulnerable
bookworm2.3.0-1vulnerable
sid, trixie2.6.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
dnspythonsource(unstable)2.6.0-1

Notes

[bookworm] - dnspython <ignored> (Minor issue)
[bullseye] - dnspython <ignored> (Minor issue)
[buster] - dnspython <ignored> (Minor issue)
https://www.dnspython.org/news/2.6.0rc1/
https://github.com/rthalley/dnspython/commit/f66e25b5f549acf66d1fb6ead13eb3cff7d09af3 (v2.6.0rc1)
https://github.com/rthalley/dnspython/commit/e093299a49967696b1c58b68e4767de5031a3e46 (v2.6.0)
Upstream recommends not backporting fix:
https://github.com/rthalley/dnspython/issues/1051#issuecomment-1949383928
[stretch] - dnspython <ignored> (Minor issue)
[jessie] - dnspython <ignored> (Minor issue)

Search for package or bug name: Reporting problems