CVE-2019-18197

Publication date 18 October 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. If the relevant memory area happened to be freed and reused in a certain way, a bounds check could fail and memory outside a buffer could be written to, or uninitialized data could be disclosed.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libxslt	19.10 eoan	Fixed 1.1.33-0ubuntu1.1
	19.04 disco	Fixed 1.1.32-2ubuntu0.2
	18.04 LTS bionic	Fixed 1.1.29-5ubuntu0.2
	16.04 LTS xenial	Fixed 1.1.28-2.1ubuntu0.3
	14.04 LTS trusty	Fixed 1.1.28-2ubuntu0.2+esm1

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Patch details

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

Package	Patch details
libxslt	Upstream: 2232473

Severity score breakdown

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

References

Related Ubuntu Security Notices (USN)

USN-4164-1
Libxslt vulnerabilities
22 October 2019