CVE-2023-38633

Publication date 22 July 2023

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A directory traversal problem in the URL decoder of librsvg before 2.56.3 could be used by local or remote attackers to disclose files (on the local filesystem outside of the expected area), as demonstrated by href=".?../../../../../../../../../../etc/passwd" in an xi:include element.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
librsvg	23.04 lunar	Fixed 2.54.5+dfsg-1ubuntu2.1
	22.04 LTS jammy	Fixed 2.52.5+dfsg-3ubuntu0.2
	20.04 LTS focal	Fixed 2.48.9-1ubuntu0.20.04.4
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Ignored end of standard support

Notes

alexmurray

PoC is provided in the oss-security post as well as the upstream bug report.

Patch details

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

Package	Patch details
librsvg	Upstream: 8d2cb4b Upstream: 1ccb995 Upstream: 15293f1 Upstream: f835dee Upstream: d1f066b Upstream: 25e2e03 Upstream: 22bcb91

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-6266-1
librsvg vulnerability
1 August 2023