libxml2 fixes 1 vulnerability

Do you think this report is well-written? *

Yes

Do you use this technology? *

Yes

Was this report useful to you?

Yes

We would be happy if you would describe:

The security services provided by CESNET are designed to provide significant support in ensuring the cybersecurity of connected organizations. Although we strive to provide quality and reliable services, it is not possible to guarantee absolute coverage of all security vulnerabilities. Our services should be seen as a complement to an organization's own security management, not as a replacement. The client bears ultimate responsibility for securing their environment.

This report was translated by AI; nobody has reviewed the translation yet. Original language: Slovak.

[TLP:CLEAR] libxml2 fixes 1 vulnerability

libxml2 versions 2.11.9, 2.12.9 and 2.13.3 fix 1 vulnerability [1].

libxml2 - XXE (CVE-2024-40896)

CVSS 6.5 (Medium)

Allows an unauthenticated remote attacker, using social engineering and a specially crafted XML file, to read arbitrary files in the file system [2][3]. The vulnerability is a regression of the vulnerability CVE-2012-0037 [2], so the same PoC, available at [4], can be used to verify whether a system is vulnerable.

The vulnerability is present in product:

libxml2; >=2.11, <2.11.9; >=2.12, <2.12.9; >=2.13, <2.13.3;

CVSS: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

More information:

CVE-2024-40896 at cve.org, NVD
CWE-611: Improper Restriction of XML External Entity Reference at cwe.mitre.org

The vulnerability was publicly disclosed 23. 12. 2024.

Links

By CESNET, z.s.p.o. Martin Krajči on 2. 1. 2025.

Report feedback

[TLP:CLEAR] libxml2 fixes 1 vulnerability

libxml2 - XXE (CVE-2024-40896)

CVSS 6.5 (Medium)

Links