CVE-2023-28484
libxml2 - security update
6.5
MEDIUM
CVSS 3.1
EPSS 0.40%
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.
How to fix CVE-2023-28484
To remediate CVE-2023-28484, upgrade the affected package to a fixed version below.
- Alpine/libxml2—upgrade to 2.10.4-r0 or later
- —upgrade to 2.9.10+dfsg-6.7+deb11u4 or later
- —upgrade to 2.9.4+dfsg1-7+deb10u6 or later
- —upgrade to 2.9.10+dfsg-6.7+deb11u4 or later
Is CVE-2023-28484 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 2.10.4-r0
- from 0, < 2.9.10+dfsg-6.7+deb11u4
- from 0, < 2.9.4+dfsg1-7+deb10u6
- from 0, < 2.9.10+dfsg-6.7+deb11u4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |