| Name | CVE-2018-16881 |
| Description | A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket, which would cause rsyslog to crash. Versions before 8.27.0 are vulnerable. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| NVD severity | medium (attack range: remote) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| rsyslog (PTS) | jessie | 8.4.2-1+deb8u2 | fixed |
| stretch | 8.24.0-1 | vulnerable | |
| buster | 8.1901.0-1 | fixed | |
| bullseye | 8.1907.0-1 | fixed | |
| sid | 8.1907.0-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| rsyslog | source | (unstable) | 8.27.0-2 | medium | ||
| rsyslog | source | jessie | (not affected) |
[stretch] - rsyslog <no-dsa> (Minor issue; imptcp not enabled by default)
[jessie] - rsyslog <not-affected> (Vulnerable code introduced in 8.13.1)
Fixed by: https://github.com/rsyslog/rsyslog/commit/0381a0de64a5a048c3d48b79055bd9848d0c7fc2
Introduced by: https://github.com/rsyslog/rsyslog/commit/6c52f29d593a27f934a1871d40eed84ebde3f3a6