NULL Pointer Dereference Affecting jbcs-httpd24-httpd-selinux package, versions <0:2.4.37-80.el8jbcs


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
3.5% (88th percentile)

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  • Snyk IDSNYK-RHEL8-JBCSHTTPD24HTTPDSELINUX-5402645
  • published26 Jul 2021
  • disclosed1 May 2021

Introduced: 1 May 2021

CVE-2021-3537  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:8 jbcs-httpd24-httpd-selinux to version 0:2.4.37-80.el8jbcs or higher.
This issue was patched in RHSA-2022:1389.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jbcs-httpd24-httpd-selinux package and not the jbcs-httpd24-httpd-selinux package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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 Base Scores

version 3.1