CVE-2018-1000140

Publication date 23 March 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

rsyslog librelp version 1.2.14 and earlier contains a Buffer Overflow vulnerability in the checking of x509 certificates from a peer that can result in Remote code execution. This attack appear to be exploitable a remote attacker that can connect to rsyslog and trigger a stack buffer overflow by sending a specially crafted x509 certificate.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
librelp	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	Fixed 1.2.14-3ubuntu0.1~esm1
	17.10 artful	Ignored end of life
	16.04 LTS xenial	Fixed 1.2.9-1ubuntu0.1~esm1
	14.04 LTS trusty	Fixed 1.2.2-2ubuntu1.1

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Notes

mdeslaur

only used by rsyslog-relp packages in trusty, which is in universe.

Patch details

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

Package	Patch details
librelp	Upstream: 2cfe657

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H