| Name | CVE-2018-16864 |
| Description | An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when a program with long command line arguments calls syslog. A local attacker may use this flaw to crash systemd-journald or escalate his privileges. Versions through v240 are vulnerable. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1639-1, DSA-4367-1 |
| Debian Bugs | 918841 |
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 | 252.31-1~deb12u1 | fixed | |
| sid, trixie | 257~rc2-3 | 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 | 215-17+deb8u9 | DLA-1639-1 | ||
| systemd | source | stretch | 232-25+deb9u7 | DSA-4367-1 | ||
| systemd | source | (unstable) | 240-4 | 918841 |
Introduced in: https://github.com/systemd/systemd/commit/ae018d9bc900d6355dea4af05119b49c67945184 (v203)
Exploitable since: https://github.com/systemd/systemd/commit/ac2e41f5103ce2c679089c4f8fb6be61d7caec07 (v230)
Fixed by: https://github.com/systemd/systemd/commit/084eeb865ca63887098e0945fb4e93c852b91b0f
Fixes for master: https://github.com/systemd/systemd/pull/11374
https://www.openwall.com/lists/oss-security/2019/01/09/3
https://www.qualys.com/2019/01/09/system-down/system-down.txt
[wheezy] - systemd <not-affected> (The vulnerable code was introduced later.)