- Vulnerability/
- RHSA-2020:4479
RHSA-2020:4479: Moderate: libxml2 security update
First published: Tue Nov 03 2020(Updated: )
The libxml2 library is a development toolbox providing the implementation of various XML standards.<br>Security Fix(es):<br><li> libxml2: memory leak in xmlParseBalancedChunkMemoryRecover in parser.c (CVE-2019-19956)</li> <li> libxml2: memory leak in xmlSchemaPreRun in xmlschemas.c (CVE-2019-20388)</li> <li> libxml2: infinite loop in xmlStringLenDecodeEntities in some end-of-file situations (CVE-2020-7595)</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 8.3 Release Notes linked from the References section.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/libxml2 | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/libxml2 | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/libxml2-debuginfo | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/libxml2-debuginfo | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/libxml2-debugsource | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/libxml2-debugsource | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/libxml2-devel | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/libxml2-devel | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/python3-libxml2 | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/python3-libxml2-debuginfo | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/python3-libxml2-debuginfo | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/python3-libxml2 | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/libxml2 | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/libxml2-debuginfo | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/libxml2-debugsource | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/libxml2-devel | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/python3-libxml2 | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/python3-libxml2-debuginfo | <2.9.7-8.el8 | 2.9.7-8.el8 |
| redhat/libxml2 | <2.9.7-8.el8.aa | 2.9.7-8.el8.aa |
| redhat/libxml2-debuginfo | <2.9.7-8.el8.aa | 2.9.7-8.el8.aa |
| redhat/libxml2-debugsource | <2.9.7-8.el8.aa | 2.9.7-8.el8.aa |
| redhat/libxml2-devel | <2.9.7-8.el8.aa | 2.9.7-8.el8.aa |
| redhat/python3-libxml2 | <2.9.7-8.el8.aa | 2.9.7-8.el8.aa |
| redhat/python3-libxml2-debuginfo | <2.9.7-8.el8.aa | 2.9.7-8.el8.aa |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1788856
- https://bugzilla.redhat.com/show_bug.cgi?id=1799734
- https://bugzilla.redhat.com/show_bug.cgi?id=1799786
- https://access.redhat.com/security/updates/classification/#moderate
- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/
- https://access.redhat.com/errata/RHSA-2020:4479 (Advisory)
Frequently Asked Questions
What is the severity of RHSA-2020:4479?
The severity of RHSA-2020:4479 is classified as important due to the memory leak vulnerabilities found.
How do I fix RHSA-2020:4479?
To fix RHSA-2020:4479, update the libxml2 package to version 2.9.7-8.el8 or later.
What components are affected by RHSA-2020:4479?
The affected components include libxml2, libxml2-debuginfo, libxml2-devel, python3-libxml2, and their corresponding debug packages.
What vulnerabilities are addressed in RHSA-2020:4479?
RHSA-2020:4479 addresses memory leak vulnerabilities in xmlParseBalancedChunkMemoryRecover and xmlSchemaPreRun.
Is RHSA-2020:4479 specific to certain operating systems?
Yes, RHSA-2020:4479 is specific to Red Hat Enterprise Linux version 8.
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