#VU54225 Use-after-free in Libxml2


Published: 2021-06-18 | Updated: 2021-07-22

Vulnerability identifier: #VU54225

Vulnerability risk: High

CVSSv3.1:

CVE-ID: CVE-2021-3518

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Libxml2
Universal components / Libraries / Libraries used by multiple products

Vendor: Gnome Development Team

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in libxml2. A remote attacker can use a specially crafted file and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Libxml2: 2.9.0 - 2.9.10


CPE

External links
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/
http://lists.debian.org/debian-lts-announce/2021/05/msg00008.html
http://bugzilla.redhat.com/show_bug.cgi?id=1954242
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


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