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Red Hat Enterprise Linux 9 RHSA-2023-3559-01 Important: c-ares DoS

red hat
Calendar Grey June 14, 2023
Dist Redhat Esm H88
Ubuntu reveals a critical OpenSSL vulnerability fix for 22.04 LTS that mitigates potential data breaches.
An update for c-ares is now available for Red Hat Enterprise Linux 9

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 c-ares C library defines asynchronous DNS (Domain Name System) requests and provides name resolving API.
Security Fix(es):
* c-ares: 0-byte UDP payload Denial of Service (CVE-2023-32067)
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 Red Hat Enterprise Linux Denial of Service important advisory c-ares

References

https://access.redhat.com/security/cve/CVE-2023-32067 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream (v. 9):
aarch64: c-ares-debuginfo-1.17.1-5.el9_2.1.aarch64.rpm c-ares-debugsource-1.17.1-5.el9_2.1.aarch64.rpm c-ares-devel-1.17.1-5.el9_2.1.aarch64.rpm
ppc64le: c-ares-debuginfo-1.17.1-5.el9_2.1.ppc64le.rpm c-ares-debugsource-1.17.1-5.el9_2.1.ppc64le.rpm c-ares-devel-1.17.1-5.el9_2.1.ppc64le.rpm
s390x: c-ares-debuginfo-1.17.1-5.el9_2.1.s390x.rpm c-ares-debugsource-1.17.1-5.el9_2.1.s390x.rpm c-ares-devel-1.17.1-5.el9_2.1.s390x.rpm
x86_64: c-ares-debuginfo-1.17.1-5.el9_2.1.i686.rpm c-ares-debuginfo-1.17.1-5.el9_2.1.x86_64.rpm c-ares-debugsource-1.17.1-5.el9_2.1.i686.rpm c-ares-debugsource-1.17.1-5.el9_2.1.x86_64.rpm c-ares-devel-1.17.1-5.el9_2.1.i686.rpm c-ares-devel-1.17.1-5.el9_2.1.x86_64.rpm
Red Hat Enterprise Linux BaseOS (v. 9):
Source: c-ares-1.17.1-5.el9_2.1.src.rpm
aarch64: c-ares-1.17.1-5.el9_2.1.aarch64.rpm c-ares-debuginfo-1.17.1-5.el9_2.1.aarch64.rpm c-ares-debugsource-1.17.1-5.el9_2.1.aarch64.rpm
ppc64le: c-ares-1.17.1-5.el9_2.1.ppc64le.rpm c-ares-debuginfo-1.17.1-5.el9_2.1.ppc64le.rpm c-ares-debugsource-1.17.1-5.el9_2.1.ppc64le.rpm
s390x: c-ares-1.17.1-5.el9_2.1.s390x.rpm c-ares-debuginfo-1.17.1-5.el9_2.1.s390x.rpm c-ares-debugsource-1.17.1-5.el9_2.1.s390x.rpm
x86_64: c-ares-1.17.1-5.el9_2.1.i686.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:3559-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:3559
Issue date: 2023-06-12

Topic

An update for c-ares is now available for Red Hat Enterprise Linux 9.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux Denial of Service important advisory c-ares

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 9) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS (v. 9) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2209502 - CVE-2023-32067 c-ares: 0-byte UDP payload Denial of Service

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