Remote code execution in libxml2



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-23308
CWE-ID CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Libxml2
Universal components / Libraries / Libraries used by multiple products

Vendor Gnome Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU60922

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-23308

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

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

CPE2.3 External links

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


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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