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Red Hat Enterprise Linux 8: RHSA-2022-2043-01 Moderate c-ares Domain Risk

red hat
Calendar Grey May 10, 2022
Dist Redhat Esm H88
A significant c-ares update is now accessible for Red Hat Enterprise Linux 8, mitigating vulnerabilities related to domain hijacking threats.
An update for c-ares is now available for Red Hat Enterprise Linux 8

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: Missing input validation of host names may lead to domain hijacking (CVE-2021-3672)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate severity Red Hat Enterprise domain hijacking c-ares

References

https://access.redhat.com/security/cve/CVE-2021-3672 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.6_release_notes/

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: c-ares-1.13.0-6.el8.src.rpm
aarch64: c-ares-1.13.0-6.el8.aarch64.rpm c-ares-debuginfo-1.13.0-6.el8.aarch64.rpm c-ares-debugsource-1.13.0-6.el8.aarch64.rpm c-ares-devel-1.13.0-6.el8.aarch64.rpm
ppc64le: c-ares-1.13.0-6.el8.ppc64le.rpm c-ares-debuginfo-1.13.0-6.el8.ppc64le.rpm c-ares-debugsource-1.13.0-6.el8.ppc64le.rpm c-ares-devel-1.13.0-6.el8.ppc64le.rpm
s390x: c-ares-1.13.0-6.el8.s390x.rpm c-ares-debuginfo-1.13.0-6.el8.s390x.rpm c-ares-debugsource-1.13.0-6.el8.s390x.rpm c-ares-devel-1.13.0-6.el8.s390x.rpm
x86_64: c-ares-1.13.0-6.el8.i686.rpm c-ares-1.13.0-6.el8.x86_64.rpm c-ares-debuginfo-1.13.0-6.el8.i686.rpm c-ares-debuginfo-1.13.0-6.el8.x86_64.rpm c-ares-debugsource-1.13.0-6.el8.i686.rpm c-ares-debugsource-1.13.0-6.el8.x86_64.rpm c-ares-devel-1.13.0-6.el8.i686.rpm c-ares-devel-1.13.0-6.el8.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/


Advisory ID: RHSA-2022:2043-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:2043
Issue date: 2022-05-10

Topic

An update for c-ares is now available for Red Hat Enterprise Linux 8.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 severity Red Hat Enterprise domain hijacking c-ares

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1988342 - CVE-2021-3672 c-ares: Missing input validation of host names may lead to domain hijacking

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