Vulnerability identifier: #VU60922

Vulnerability risk: High

CVSSv3.1:

CVE-ID: CVE-2022-23308

CWE-ID:

Exploitation vector: Network

Exploit availability:

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 when processing ID and IDREF attributes in valid.c. A remote attacker can pass specially crafted XML input to the application, trigger a use-after-free error and crash the application or execute arbitrary code on the 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: 2.0.0 - 2.9.12

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Fixed software versions

CPE

• cpe:2.3:a:gnome:libxml2:2.9.12:*:*:*:*:*:*:*

External links
http://gitlab.gnome.org/GNOME/libxml2/-/blob/v2.9.13/NEWS
http://github.com/GNOME/libxml2/commit/652dd12a858989b14eed4e84e453059cd3ba340e

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?