CVE-2021-3537 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1956522 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/ https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/ https://security.netapp.com/advisory/ntap-20210625-0002/ https://security.gentoo.org/glsa/202107-05 https://www.oracle.com/security-alerts/cpuoct2021.html https://www.oracle.com/security-alerts/cpuapr2022.html

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.9