| Name | CVE-2021-41055 |
| Description | Gajim 1.2.x and 1.3.x before 1.3.3 allows remote attackers to cause a denial of service (crash) via a crafted XMPP Last Message Correction (XEP-0308) message in multi-user chat, where the message ID equals the correction ID. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-5064-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| python-nbxmpp (PTS) | bullseye (security), bullseye | 2.0.2-1+deb11u1 | fixed |
| bookworm | 4.2.2-2 | fixed |
| sid, trixie | 5.0.4-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[buster] - python-nbxmpp <not-affected> (Vulnerable code not present)
[stretch] - python-nbxmpp <not-affected> (Vulnerable code introduced later (modules added in v1.0.0))
https://dev.gajim.org/gajim/gajim/-/issues/10638
https://dev.gajim.org/gajim/python-nbxmpp/-/commit/8a626829d7c4b14077f764e61b1d1e867d21413f
Fix in python-nbxmpp, and gajim 1.3.3 bumps depends on required nbxmpp version.