CVE-2018-16881

Publication date 25 January 2019

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
rsyslog	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Fixed 8.16.0-1ubuntu3.1+esm1 Ubuntu Pro
	14.04 LTS trusty	Vulnerable

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Notes

sbeattie

requires imptcp module to be loaded, which is not enabled in the default configuration

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
rsyslog	Upstream: 0381a0d

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-5419-1
Rsyslog vulnerabilities
12 May 2022