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CVE-2021-3537

Publication date 14 May 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.9 · Medium

Score breakdown

A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability.

Status

Package Ubuntu Release Status
libxml2 22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Fixed 2.9.10+dfsg-6.3ubuntu0.1
20.10 groovy
Fixed 2.9.10+dfsg-5ubuntu0.20.10.2
20.04 LTS focal
Fixed 2.9.10+dfsg-5ubuntu0.20.04.1
18.04 LTS bionic
Fixed 2.9.4+dfsg1-6.1ubuntu1.4
16.04 LTS xenial
14.04 LTS trusty

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Severity score breakdown

Parameter Value
Base score 5.9 · Medium
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H