RHSA-2020:1190: Moderate: libxml2 security update
First published: Tue Mar 31 2020(Updated: )
The libxml2 library is a development toolbox providing the implementation of various XML standards.<br>Security Fix(es):<br><li> libxml2: Use after free triggered by XPointer paths beginning with range-to (CVE-2016-5131)</li> <li> libxml2: Use after free in xmlXPathCompOpEvalPositionalPredicate() function in xpath.c (CVE-2017-15412)</li> <li> libxml2: DoS caused by incorrect error detection during XZ decompression (CVE-2015-8035)</li> <li> libxml2: NULL pointer dereference in xmlXPathCompOpEval() function in xpath.c (CVE-2018-14404)</li> <li> libxml2: Unrestricted memory usage in xz_head() function in xzlib.c (CVE-2017-18258)</li> <li> libxml2: Infinite loop caused by incorrect error detection during LZMA decompression (CVE-2018-14567)</li> For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.<br>Additional Changes:<br>For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.8 Release Notes linked from the References section.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/libxml2 | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2 | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2-debuginfo | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2-debuginfo | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2-devel | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2-devel | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2-python | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2-static | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2-static | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2-python | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2 | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2-debuginfo | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2-devel | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2-python | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
| redhat/libxml2-static | <2.9.1-6.el7.4 | 2.9.1-6.el7.4 |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2020:1190?
The vulnerability identified by RHSA-2020:1190 has been classified as severe due to the potential for exploitation leading to a use-after-free condition.
How do I fix RHSA-2020:1190?
To fix the vulnerability RHSA-2020:1190, update the libxml2 package to version 2.9.1-6.el7.4 or later.
What versions of libxml2 are affected by RHSA-2020:1190?
Versions of libxml2 prior to 2.9.1-6.el7.4 are affected by the vulnerability RHSA-2020:1190.
What types of systems are impacted by RHSA-2020:1190?
RHSA-2020:1190 impacts systems using the libxml2 library on Red Hat Enterprise Linux 7 and its derivatives.
Is there a risk associated with RHSA-2020:1190?
Yes, the risk associated with RHSA-2020:1190 includes potential exploitation that could lead to application crashes or arbitrary code execution.
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