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RedHat Enterprise Linux 7: RHSA-2023:1095-01 Moderate Zlib Buffer Overflow

red hat
Calendar Grey March 7, 2023
Dist Redhat Esm H88
A new version of Zlib has been released for Red Hat Enterprise Linux 7, classified as moderate in terms of security risks, primarily addressing heap overflow vulnerabilities.
An update for zlib is now available for Red Hat Enterprise Linux 7

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

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

Topics%20covered

Topics Covered

security advisory moderate buffer overflow Red Hat Enterprise Linux heap overflow security impact zlib

References

https://access.redhat.com/security/cve/CVE-2022-37434 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: zlib-1.2.7-21.el7_9.src.rpm
x86_64: zlib-1.2.7-21.el7_9.i686.rpm zlib-1.2.7-21.el7_9.x86_64.rpm zlib-debuginfo-1.2.7-21.el7_9.i686.rpm zlib-debuginfo-1.2.7-21.el7_9.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: minizip-1.2.7-21.el7_9.i686.rpm minizip-1.2.7-21.el7_9.x86_64.rpm minizip-devel-1.2.7-21.el7_9.i686.rpm minizip-devel-1.2.7-21.el7_9.x86_64.rpm zlib-debuginfo-1.2.7-21.el7_9.i686.rpm zlib-debuginfo-1.2.7-21.el7_9.x86_64.rpm zlib-devel-1.2.7-21.el7_9.i686.rpm zlib-devel-1.2.7-21.el7_9.x86_64.rpm zlib-static-1.2.7-21.el7_9.i686.rpm zlib-static-1.2.7-21.el7_9.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: zlib-1.2.7-21.el7_9.src.rpm
x86_64: zlib-1.2.7-21.el7_9.i686.rpm zlib-1.2.7-21.el7_9.x86_64.rpm zlib-debuginfo-1.2.7-21.el7_9.i686.rpm zlib-debuginfo-1.2.7-21.el7_9.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: minizip-1.2.7-21.el7_9.i686.rpm minizip-1.2.7-21.el7_9.x86_64.rpm minizip-devel-1.2.7-21.el7_9.i686.rpm minizip-devel-1.2.7-21.el7_9.x86_64.rpm zlib-debuginfo-1.2.7-21.el7_9.i686.rpm zlib-debuginfo-1.2.7-21.el7_9.x86_64.rpm zlib-devel-1.2.7-21.el7_9.i686.rpm zlib-devel-1.2.7-21.el7_9.x86_64.rpm zlib-static-1.2.7-21.el7_9.i686.rpm

Read the Full Advisory


Advisory ID: RHSA-2023:1095-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:1095
Issue date: 2023-03-07

Topic

An update for zlib is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate buffer overflow Red Hat Enterprise Linux heap overflow security impact zlib

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

2116639 - CVE-2022-37434 zlib: heap-based buffer over-read and overflow in inflate() in inflate.c via a large gzip header extra field

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