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Red Hat: RHSA-2022-6781-01 Important: BIND 9 Memory Leak Security Fix

red hat
Calendar Grey October 4, 2022
Dist Redhat Esm H88
Discover crucial updates for bind9.16 on RHEL, addressing significant security vulnerabilities that need your attention for better protection
An update for bind9.16 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 Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.
Security Fix(es):
* bind: BIND 9 resolvers configured to answer from cache with zero stale-answer-timeout may terminate unexpectedly (CVE-2022-3080)
* bind: memory leak in ECDSA DNSSEC verification code (CVE-2022-38177)
* bind: memory leaks in EdDSA DNSSEC verification code (CVE-2022-38178)
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 bind memory leak DNS issue important update BIND 9

References

https://access.redhat.com/security/cve/CVE-2022-3080 https://access.redhat.com/security/cve/CVE-2022-38177 https://access.redhat.com/security/cve/CVE-2022-38178 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: bind9.16-9.16.23-0.7.el8_6.1.src.rpm
aarch64: bind9.16-9.16.23-0.7.el8_6.1.aarch64.rpm bind9.16-chroot-9.16.23-0.7.el8_6.1.aarch64.rpm bind9.16-debuginfo-9.16.23-0.7.el8_6.1.aarch64.rpm bind9.16-debugsource-9.16.23-0.7.el8_6.1.aarch64.rpm bind9.16-dnssec-utils-debuginfo-9.16.23-0.7.el8_6.1.aarch64.rpm bind9.16-libs-9.16.23-0.7.el8_6.1.aarch64.rpm bind9.16-libs-debuginfo-9.16.23-0.7.el8_6.1.aarch64.rpm bind9.16-utils-9.16.23-0.7.el8_6.1.aarch64.rpm bind9.16-utils-debuginfo-9.16.23-0.7.el8_6.1.aarch64.rpm
noarch: bind9.16-license-9.16.23-0.7.el8_6.1.noarch.rpm
ppc64le: bind9.16-9.16.23-0.7.el8_6.1.ppc64le.rpm bind9.16-chroot-9.16.23-0.7.el8_6.1.ppc64le.rpm bind9.16-debuginfo-9.16.23-0.7.el8_6.1.ppc64le.rpm bind9.16-debugsource-9.16.23-0.7.el8_6.1.ppc64le.rpm bind9.16-dnssec-utils-debuginfo-9.16.23-0.7.el8_6.1.ppc64le.rpm bind9.16-libs-9.16.23-0.7.el8_6.1.ppc64le.rpm bind9.16-libs-debuginfo-9.16.23-0.7.el8_6.1.ppc64le.rpm bind9.16-utils-9.16.23-0.7.el8_6.1.ppc64le.rpm bind9.16-utils-debuginfo-9.16.23-0.7.el8_6.1.ppc64le.rpm
s390x: bind9.16-9.16.23-0.7.el8_6.1.s390x.rpm bind9.16-chroot-9.16.23-0.7.el8_6.1.s390x.rpm bind9.16-debuginfo-9.16.23-0.7.el8_6.1.s390x.rpm bind9.16-debugsource-9.16.23-0.7.el8_6.1.s390x.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:6781-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:6781
Issue date: 2022-10-04

Topic

An update for bind9.16 is now available for Red Hat Enterprise Linux 8.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 bind memory leak DNS issue important update BIND 9

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

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

Bugs Fixed

2128600 - CVE-2022-3080 bind: BIND 9 resolvers configured to answer from cache with zero stale-answer-timeout may terminate unexpectedly

2128601 - CVE-2022-38177 bind: memory leak in ECDSA DNSSEC verification code

2128602 - CVE-2022-38178 bind: memory leaks in EdDSA DNSSEC verification code

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