DescriptionA 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.
SourceCVE (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 severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
rsyslog (PTS)jessie8.4.2-1+deb8u2fixed
buster, sid8.1901.0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
rsyslogsourcejessie(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:
Introduced by:

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