NULL pointer dereference in Xmlsoft Libxml2
CVE-2023-28484
In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.009 (59.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.009 · change: -0.001
Affected products
- Xmlsoft Libxml2
- Debian Linux — versions 10.0
Weakness classification (CWE)
References
- gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4 (Release Notes)
- gitlab.gnome.org/GNOME/libxml2/-/issues/491 (Exploit, Patch, Issue Tracking, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2023/04/msg00031.html (mailing-list, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20230601-0006/
- security.netapp.com/advisory/ntap-20240201-0005/
Frequently asked questions
- What is CVE-2023-28484?
- CVE-2023-28484 is a medium-severity vulnerability in Xmlsoft Libxml2, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2023-04-24.
- How severe is CVE-2023-28484?
- Medium severity. CVSS v3 base score is 6.5 out of 10.