RHSA-2023:1095: Moderate: zlib security update

Published Mar 7, 2023
·
Updated

The zlib packages provide a general-purpose lossless data compression library that is used by many different programs.<br>Security Fix(es):<br><li> zlib: heap-based buffer over-read and overflow in inflate() in inflate.c via a large gzip header extra field (CVE-2022-37434)</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.

Affected Software

18 affected componentsFixes available
redhat/zlib<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/minizip<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/minizip<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/minizip-devel<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/minizip-devel<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/zlib<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/zlib-debuginfo<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/zlib-debuginfo<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/zlib-devel<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/zlib-devel<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/zlib-static<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/zlib-static<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/minizip<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/minizip-devel<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/zlib<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/zlib-debuginfo<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/zlib-devel<1.2.7-21.el7_9
1.2.7-21.el7_9
redhat/zlib-static<1.2.7-21.el7_9
1.2.7-21.el7_9

Remediation

Event History

Feb 28, 2025
Advisory Published
via Red Hat·05:51 PM
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Frequently Asked Questions

1

What is the severity of RHSA-2023:1095?

The severity of RHSA-2023:1095 is classified as moderate due to a potential heap-based buffer over-read and overflow.

2

How do I fix RHSA-2023:1095?

To fix RHSA-2023:1095, update the zlib, minizip, and other affected packages to version 1.2.7-21.el7_9 or later.

3

What are the affected packages in RHSA-2023:1095?

The affected packages in RHSA-2023:1095 include zlib, minizip, minizip-devel, and their debug versions.

4

What vulnerability is addressed in RHSA-2023:1095?

RHSA-2023:1095 addresses CVE-2022-37434, which involves a heap-based buffer over-read and overflow.

5

Is there a need for reboot after applying RHSA-2023:1095?

A reboot is not typically required after applying the updates from RHSA-2023:1095.

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