| Name | CVE-2016-7795 |
| Description | The manager_invoke_notify_message function in systemd 231 and earlier allows local users to cause a denial of service (assertion failure and PID 1 hang) via a zero-length message received over a notify socket. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 839171 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| systemd (PTS) | jessie, jessie (lts) | 215-17+deb8u15 | fixed |
| stretch (security) | 232-25+deb9u14 | fixed |
| stretch (lts), stretch | 232-25+deb9u17 | fixed |
| buster, buster (lts) | 241-7~deb10u11 | fixed |
| buster (security) | 241-7~deb10u10 | fixed |
| bullseye | 247.3-7+deb11u5 | fixed |
| bullseye (security) | 247.3-7+deb11u6 | fixed |
| bookworm | 252.30-1~deb12u2 | fixed |
| sid, trixie | 256.7-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| systemd | source | wheezy | (not affected) | | | |
| systemd | source | jessie | (not affected) | | | |
| systemd | source | (unstable) | 231-9 | | | 839171 |
Notes
[jessie] - systemd <not-affected> (Introduced in 219)
[wheezy] - systemd <not-affected> (Introduced in 219)
https://github.com/systemd/systemd/issues/4234
https://github.com/systemd/systemd/commit/531ac2b2349da02acc9c382849758e07eb92b020
Originally fixed in 231-8 but caused a regression fixed in 231-9
https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet