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Red Hat Enterprise Linux 8.6: RHSA-2023:3662-01 Important: c-ares DoS

red hat
Calendar Grey June 19, 2023
Dist Redhat Esm H88
Critical patch released for c-ares on Red Hat Enterprise Linux 8.6 EUS, resolving potential denial of service vulnerability.
An update for c-ares is now available for Red Hat Enterprise Linux 8.6 Extended Update Support

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 c-ares update security impact important

References

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

Package List

Red Hat Enterprise Linux BaseOS EUS (v.8.6):
Source: c-ares-1.13.0-6.el8_6.1.src.rpm
aarch64: c-ares-1.13.0-6.el8_6.1.aarch64.rpm c-ares-debuginfo-1.13.0-6.el8_6.1.aarch64.rpm c-ares-debugsource-1.13.0-6.el8_6.1.aarch64.rpm c-ares-devel-1.13.0-6.el8_6.1.aarch64.rpm
ppc64le: c-ares-1.13.0-6.el8_6.1.ppc64le.rpm c-ares-debuginfo-1.13.0-6.el8_6.1.ppc64le.rpm c-ares-debugsource-1.13.0-6.el8_6.1.ppc64le.rpm c-ares-devel-1.13.0-6.el8_6.1.ppc64le.rpm
s390x: c-ares-1.13.0-6.el8_6.1.s390x.rpm c-ares-debuginfo-1.13.0-6.el8_6.1.s390x.rpm c-ares-debugsource-1.13.0-6.el8_6.1.s390x.rpm c-ares-devel-1.13.0-6.el8_6.1.s390x.rpm
x86_64: c-ares-1.13.0-6.el8_6.1.i686.rpm c-ares-1.13.0-6.el8_6.1.x86_64.rpm c-ares-debuginfo-1.13.0-6.el8_6.1.i686.rpm c-ares-debuginfo-1.13.0-6.el8_6.1.x86_64.rpm c-ares-debugsource-1.13.0-6.el8_6.1.i686.rpm c-ares-debugsource-1.13.0-6.el8_6.1.x86_64.rpm c-ares-devel-1.13.0-6.el8_6.1.i686.rpm c-ares-devel-1.13.0-6.el8_6.1.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:3662-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:3662
Issue date: 2023-06-19

Topic

An update for c-ares is now available for Red Hat Enterprise Linux 8.6Extended Update Support.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 c-ares update security impact important

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS EUS (v.8.6) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

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

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