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Red Hat Enterprise Linux 6: RHSA-2020-2640-01 Important: Unbound Update

red hat
Calendar Grey June 22, 2020
Dist Redhat Esm H88
Vital patch for unbound software in Red Hat Enterprise Linux 6 tackles severe vulnerabilities and enhances overall system protection.
An update for unbound is now available for Red Hat Enterprise Linux 6

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 unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.
Security Fix(es):
* unbound: amplification of an incoming query into a large number of queries directed to a target (CVE-2020-12662)
* unbound: infinite loop via malformed DNS answers received from upstream servers (CVE-2020-12663)
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 important DNS amplification infinite loop unbound

References

https://access.redhat.com/security/cve/CVE-2020-12662 https://access.redhat.com/security/cve/CVE-2020-12663 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: unbound-1.4.20-29.el6_10.1.src.rpm
i386: unbound-debuginfo-1.4.20-29.el6_10.1.i686.rpm unbound-libs-1.4.20-29.el6_10.1.i686.rpm
x86_64: unbound-debuginfo-1.4.20-29.el6_10.1.i686.rpm unbound-debuginfo-1.4.20-29.el6_10.1.x86_64.rpm unbound-libs-1.4.20-29.el6_10.1.i686.rpm unbound-libs-1.4.20-29.el6_10.1.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: unbound-1.4.20-29.el6_10.1.i686.rpm unbound-debuginfo-1.4.20-29.el6_10.1.i686.rpm unbound-devel-1.4.20-29.el6_10.1.i686.rpm unbound-python-1.4.20-29.el6_10.1.i686.rpm
x86_64: unbound-1.4.20-29.el6_10.1.x86_64.rpm unbound-debuginfo-1.4.20-29.el6_10.1.i686.rpm unbound-debuginfo-1.4.20-29.el6_10.1.x86_64.rpm unbound-devel-1.4.20-29.el6_10.1.i686.rpm unbound-devel-1.4.20-29.el6_10.1.x86_64.rpm unbound-python-1.4.20-29.el6_10.1.i686.rpm unbound-python-1.4.20-29.el6_10.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: unbound-1.4.20-29.el6_10.1.src.rpm
i386: unbound-1.4.20-29.el6_10.1.i686.rpm unbound-debuginfo-1.4.20-29.el6_10.1.i686.rpm unbound-libs-1.4.20-29.el6_10.1.i686.rpm
ppc64: unbound-1.4.20-29.el6_10.1.ppc64.rpm unbound-debuginfo-1.4.20-29.el6_10.1.ppc.rpm unbound-debuginfo-1.4.20-29.el6_10.1.ppc64.rpm unbound-libs-1.4.20-29.el6_10.1.ppc.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:2640-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2640
Issue date: 2020-06-22

Topic

An update for unbound is now available for Red Hat Enterprise Linux 6.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 important DNS amplification infinite loop unbound

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

1837597 - CVE-2020-12662 unbound: amplification of an incoming query into a large number of queries directed to a target

1837604 - CVE-2020-12663 unbound: infinite loop via malformed DNS answers received from upstream servers

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