CVE-2018-14567

Publication date 31 July 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035 and CVE-2018-9251.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libxml2	18.04 LTS bionic	Fixed 2.9.4+dfsg1-6.1ubuntu1.2
	16.04 LTS xenial	Fixed 2.9.3+dfsg1-1ubuntu0.6
	14.04 LTS trusty	Fixed 2.9.1+dfsg1-3ubuntu4.13

Notes

leosilva

precise/esm version has not LZMA support

ccdm94

the same patch used to fix this vulnerability can also be used to fix CVE-2018-9251 (even though they are different CVEs).

Patch details

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

Package	Patch details
libxml2	Upstream: 2240fbf

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H