| Name | CVE-2017-2625 |
| Description | It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could potentially use information available from the process list to brute force the key, allowing them to hijack other users' sessions. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | ELA-708-1 |
| Debian Bugs | 856399 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libxdmcp (PTS) | jessie, jessie (lts) | 1:1.1.1-1+deb8u3 | fixed |
| buster, bullseye, stretch, bookworm | 1:1.1.2-3 | fixed |
| sid, trixie | 1:1.1.5-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[wheezy] - libxdmcp <no-dsa> (Minor issue, can be fixed in a point update or next DSA)
https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/