Home/CVE/In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently
CVE

CVE-2023-28484

In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently

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.

MEDIUM · CVSS 6.5 EPSS 0.00388
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

2
xmlsoft libxml2< 2.10.4
debian linuxall versions
⚠

Public Exploits & PoCs

1
pocgitlab.gnome.org · issues/491gitlab.gnome.org
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 Apr 2023 · 09:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

22
siemens-csafSSA-769027
suse-csafopenSUSE-SU-2024:12877-1
siemens-csafSSA-341067
siemens-csafSSA-625862
siemens-csafSSA-556635
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4Release Notes
https://lists.debian.org/debian-lts-announce/2023/04/msg00031.htmlMailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20230601-0006/
https://security.netapp.com/advisory/ntap-20240201-0005/
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