CVE-2021-34550

NameCVE-2021-34550
DescriptionAn issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-006. The v3 onion service descriptor parsing allows out-of-bounds memory access, and a client crash, via a crafted onion service descriptor
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-4932-1
Debian Bugs990000

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
tor (PTS)bullseye (security), bullseye0.4.5.16-1fixed
bookworm, bookworm (security)0.4.7.16-1fixed
forky, sid, trixie0.4.8.16-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
torsourcestretch(unfixed)end-of-life
torsourcebuster0.3.5.15-1DSA-4932-1
torsource(unstable)0.4.5.9-1990000

Notes

[stretch] - tor <end-of-life> (See DSA 4644)
https://blog.torproject.org/node/2041
Search for package or bug name: Reporting problems