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CVE-2023-28484

Publication date 12 April 2023

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

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.

Status

Package Ubuntu Release Status
libxml2 23.04 lunar
Fixed 2.9.14+dfsg-1.1ubuntu0.1
22.10 kinetic
Fixed 2.9.14+dfsg-1ubuntu0.2
22.04 LTS jammy
Fixed 2.9.13+dfsg-1ubuntu0.3
20.04 LTS focal
Fixed 2.9.10+dfsg-5ubuntu0.20.04.6
18.04 LTS bionic
Fixed 2.9.4+dfsg1-6.1ubuntu1.9
16.04 LTS xenial
14.04 LTS trusty

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Severity score breakdown

Parameter Value
Base score 6.5 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H