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Red Hat Enterprise Linux 8: RHSA-2019:1714-01 Important BIND DoS

red hat
Calendar Grey July 10, 2019
Dist Redhat Esm H88
Critical security patch released for Red Hat Enterprise Linux 8 BIND libraries to mitigate risks associated with malformed packet 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: Race condition when discarding malformed packets can cause bind to exit with assertion failure (CVE-2019-6471)
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 DoS Red Hat Enterprise Linux security impact BIND malformed packets important update

References

https://access.redhat.com/security/cve/CVE-2019-6471 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: bind-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-chroot-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-debuginfo-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-debugsource-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-devel-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-export-libs-debuginfo-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-libs-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-libs-debuginfo-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-libs-lite-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-libs-lite-debuginfo-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-lite-devel-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-pkcs11-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-pkcs11-debuginfo-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-pkcs11-devel-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-pkcs11-libs-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-pkcs11-libs-debuginfo-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-pkcs11-utils-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-pkcs11-utils-debuginfo-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-sdb-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-sdb-chroot-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-sdb-debuginfo-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-utils-9.11.4-17.P2.el8_0.1.aarch64.rpm bind-utils-debuginfo-9.11.4-17.P2.el8_0.1.aarch64.rpm
noarch: bind-license-9.11.4-17.P2.el8_0.1.noarch.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:1714-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:1714
Issue date: 2019-07-09

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 DoS Red Hat Enterprise Linux security impact BIND malformed packets important update

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

1721780 - CVE-2019-6471 bind: Race condition when discarding malformed packets can cause bind to exit with assertion failure

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