CVE-2006-10002

Publication date 19 March 2026

Last updated 14 April 2026

Ubuntu priority

Cvss 3 Severity Score

Description

XML::Parser versions through 2.45 for Perl could overflow the pre-allocated buffer size cause a heap corruption (double free or corruption) and crashes. A :utf8 PerlIO layer, parse_stream() in Expat.xs could overflow the XML input buffer because Perl's read() returns decoded characters while SvPV() gives back multi-byte UTF-8 bytes that can exceed the pre-allocated buffer size. This can cause heap corruption (double free or corruption) and crashes.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libxml-parser-perl	25.10 questing	Fixed 2.47-1ubuntu0.25.10.1
	24.04 LTS noble	Fixed 2.47-1ubuntu0.24.04.1
	22.04 LTS jammy	Fixed 2.46-3ubuntu0.1
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation

Patch details

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

Package	Patch details
libxml-parser-perl	Upstream: 56b0509 Upstream: 5361c2b

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-8174-1
XML::Parser vulnerabilities
14 April 2026