RHSA-2023:0943: Important: zlib security update

Published Feb 28, 2023
·
Updated

The zlib packages provide a general-purpose lossless data compression library that is used by many different programs.Security Fix(es): zlib: A flaw found in zlib when compressing (not decompressing) certain inputs (CVE-2018-25032) 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<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/minizip<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/minizip<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/minizip-devel<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/minizip-devel<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/zlib<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/zlib-debuginfo<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/zlib-debuginfo<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/zlib-devel<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/zlib-devel<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/zlib-static<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/zlib-static<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/minizip<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/minizip-devel<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/zlib<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/zlib-debuginfo<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/zlib-devel<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1
redhat/zlib-static<1.2.7-18.el7_7.1
1.2.7-18.el7_7.1

Remediation

Event History

May 26, 2026
Advisory Published
via Red Hat·09:15 PM
Data Sourced
via Red Hat·09:15 PM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2023:0943?

The severity of RHSA-2023:0943 is classified as important.

2

How do I fix RHSA-2023:0943?

To resolve RHSA-2023:0943, update the affected zlib packages to version 1.2.7-18.el7_7.1 or later.

3

What software is affected by RHSA-2023:0943?

The affected software includes zlib, minizip, and their development equivalents.

4

What vulnerability does RHSA-2023:0943 address?

RHSA-2023:0943 addresses a flaw in zlib when compressing specific inputs, identified as CVE-2018-25032.

5

Is there a workaround for RHSA-2023:0943?

There is no workaround for RHSA-2023:0943; the only resolution is to apply the update.

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