Denial of service in Libxml2



Published: 2023-11-20
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-45322
CWE-ID CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Libxml2
Universal components / Libraries / Libraries used by multiple products

Vendor Gnome Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU83291

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-45322

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the xmlUnlinkNode() function in tree.c. A remote attacker can pass a specially crafted input to the application and perform a denial of service (DoS) attack.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Libxml2: 2.11.0 - 2.11.5

External links

http://gitlab.gnome.org/GNOME/libxml2/-/issues/583
http://gitlab.gnome.org/GNOME/libxml2/-/issues/344
http://www.openwall.com/lists/oss-security/2023/10/06/5


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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