CVE-2023-28484

MEDIUM EPSS 61.1%
Published Apr 24, 20233y ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Apr 24, 2023 3y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
61.1% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 2

VendorProductVersionRange
xmlsoftlibxml2* <2.10.4
debiandebian_linux10.0any

References 5

  • gitlab.gnome.org https://gitlab.gnome.org/GNOME/libxml2/-/issues/491
    ExploitIssue TrackingPatchVendor Advisory
  • gitlab.gnome.org https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4
    Release Notes
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2023/04/msg00031.html
    Mailing ListThird Party Advisory
  • security.netapp.com https://security.netapp.com/advisory/ntap-20230601-0006/
  • security.netapp.com https://security.netapp.com/advisory/ntap-20240201-0005/

Remediation

  • gitlab.gnome.org https://gitlab.gnome.org/GNOME/libxml2/-/issues/491
    ExploitIssue TrackingPatchVendor Advisory