CVE-2023-39615 — MEDIUM (6.5)

Vulnerability Description

Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. NOTE: the vendor's position is that the product does not support the legacy SAX1 interface with custom callbacks; there is a crash even without crafted input.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Xmlsoft	Libxml2	2.11.0

Related Weaknesses (CWE)

CWE-119

References

https://gitlab.gnome.org/GNOME/libxml2/-/issues/535ExploitIssue TrackingPatch
https://gitlab.gnome.org/GNOME/libxml2/-/issues/535ExploitIssue TrackingPatch
https://lists.debian.org/debian-lts-announce/2025/02/msg00028.html

FAQ

What is CVE-2023-39615?

CVE-2023-39615 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Xmlsoft Libxml2 v2.11.0 was discovered to contain an out-of-bounds read via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS...

How severe is CVE-2023-39615?

CVE-2023-39615 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-39615?

Check the references section above for vendor advisories and patch information. Affected products include: Xmlsoft Libxml2.