What is CVE-2023-39615?

CVE-2023-39615 is a medium-severity vulnerability in Xmlsoft Libxml2, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2023-08-29.

How severe is CVE-2023-39615?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2023-39615 known to be exploited?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Xmlsoft Libxml2

CVE-2023-39615

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.

Vulnerability class: Buffer Overflow

EPSS: 0.007 (48.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Xmlsoft Libxml2 — versions 2.11.0
N/a — versions n/a

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Patch, Issue Tracking)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2023-39615?: CVE-2023-39615 is a medium-severity vulnerability in Xmlsoft Libxml2, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.5/10. Published 2023-08-29.
How severe is CVE-2023-39615?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2023-39615 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.