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RedHat: RHSA-2020-2338-01 Important: BIND Assertion Failure Fix

red hat
Calendar Grey May 28, 2020
Dist Redhat Esm H88
Crucial bind security patch released for Red Hat Enterprise Linux 8 to rectify discovered vulnerabilities.
An update for bind 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

After installing the update, the BIND daemon (named) will be restarted automatically.

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 does not sufficiently limit the number of fetches performed when processing referrals (CVE-2020-8616)
* bind: A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c (CVE-2020-8617)
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 bind important red hat enterprise dns rhel assertion failure

References

https://access.redhat.com/security/cve/CVE-2020-8616 https://access.redhat.com/security/cve/CVE-2020-8617 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: bind-9.11.13-5.el8_2.aarch64.rpm bind-chroot-9.11.13-5.el8_2.aarch64.rpm bind-debuginfo-9.11.13-5.el8_2.aarch64.rpm bind-debugsource-9.11.13-5.el8_2.aarch64.rpm bind-devel-9.11.13-5.el8_2.aarch64.rpm bind-export-libs-debuginfo-9.11.13-5.el8_2.aarch64.rpm bind-libs-9.11.13-5.el8_2.aarch64.rpm bind-libs-debuginfo-9.11.13-5.el8_2.aarch64.rpm bind-libs-lite-9.11.13-5.el8_2.aarch64.rpm bind-libs-lite-debuginfo-9.11.13-5.el8_2.aarch64.rpm bind-lite-devel-9.11.13-5.el8_2.aarch64.rpm bind-pkcs11-9.11.13-5.el8_2.aarch64.rpm bind-pkcs11-debuginfo-9.11.13-5.el8_2.aarch64.rpm bind-pkcs11-devel-9.11.13-5.el8_2.aarch64.rpm bind-pkcs11-libs-9.11.13-5.el8_2.aarch64.rpm bind-pkcs11-libs-debuginfo-9.11.13-5.el8_2.aarch64.rpm bind-pkcs11-utils-9.11.13-5.el8_2.aarch64.rpm bind-pkcs11-utils-debuginfo-9.11.13-5.el8_2.aarch64.rpm bind-sdb-9.11.13-5.el8_2.aarch64.rpm bind-sdb-chroot-9.11.13-5.el8_2.aarch64.rpm bind-sdb-debuginfo-9.11.13-5.el8_2.aarch64.rpm bind-utils-9.11.13-5.el8_2.aarch64.rpm bind-utils-debuginfo-9.11.13-5.el8_2.aarch64.rpm
noarch: bind-license-9.11.13-5.el8_2.noarch.rpm python3-bind-9.11.13-5.el8_2.noarch.rpm
ppc64le: bind-9.11.13-5.el8_2.ppc64le.rpm bind-chroot-9.11.13-5.el8_2.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:2338-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2338
Issue date: 2020-05-28

Topic

An update for bind 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 bind important red hat enterprise dns rhel assertion failure

Relevant Releases Architectures

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

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

Bugs Fixed

1836118 - CVE-2020-8616 bind: BIND does not sufficiently limit the number of fetches performed when processing referrals

1836124 - CVE-2020-8617 bind: A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c

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