CVE-2023-28484
MEDIUMCVSS 6.5/10EPSS 1.09%
Last modified
CVE-2023-28484 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 1.09% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xmlsoft | Libxml2 | < 2.10.4 |
| Debian | Debian Linux | 10.0 |
References
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/491Exploit, Issue Tracking, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/04/msg00031.htmlMailing List, Third Party Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/491Exploit, Issue Tracking, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/04/msg00031.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2023-28484?
CVE-2023-28484 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.
How do I fix CVE-2023-28484?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2023-28484?
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