CVE-2023-45322
libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in xmlUnlinkNode in tree.c. NOTE: the vendor's position is "I don't think these
02 Description
libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in xmlUnlinkNode in tree.c. NOTE: the vendor's position is "I don't think these
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.96% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 61.5% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-15.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-10-06 00:00Z3 YR AGO
- Last updated
- 2026-10-14 23:51Z14 DAYS AGO
- Reserved
- 2023-10-06
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.2
- Document digest
- ebe5546b9522af576ade58fce6ea9562f209dec3b60a125cbb4b768e75bc67ba
05 Affected products
06 References
- gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libxml2/-/issues/583
- gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libxml2/-/issues/344
- www.openwall.com[oss-security] 20231006 CVE-2023-45322: Use-after-free in libxml2 through 2.11.5http://www.openwall.com/lists/oss-security/2023/10/06/5
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/02/msg00028.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html
07 Fixed in
Debian 12
- libxml2 Fixed in 2.9.14+dfsg-1.3~deb12u2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libxml2 Fixed in 2.12.7+dfsg+really2.9.14-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libxml2 Fixed in 2.12.7+dfsg+really2.9.14-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.