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RedHat: RHSA-2020-1716 Moderate: Unbound Command Injection Threat

red hat
Calendar Grey April 28, 2020
Dist Redhat Esm H88
Critical software patch released for Red Hat Enterprise Linux 8, assessed as moderate level due to vulnerability associated with command execution.
An update for unbound 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 unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.
Security Fix(es):
* unbound: command injection with data coming from a specially crafted IPSECKEY answer (CVE-2019-18934)
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 8.2 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat dns resolver command injection unbound

References

https://access.redhat.com/security/cve/CVE-2019-18934 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.2_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: unbound-1.7.3-10.el8.src.rpm
aarch64: python3-unbound-1.7.3-10.el8.aarch64.rpm python3-unbound-debuginfo-1.7.3-10.el8.aarch64.rpm unbound-1.7.3-10.el8.aarch64.rpm unbound-debuginfo-1.7.3-10.el8.aarch64.rpm unbound-debugsource-1.7.3-10.el8.aarch64.rpm unbound-devel-1.7.3-10.el8.aarch64.rpm unbound-libs-1.7.3-10.el8.aarch64.rpm unbound-libs-debuginfo-1.7.3-10.el8.aarch64.rpm
ppc64le: python3-unbound-1.7.3-10.el8.ppc64le.rpm python3-unbound-debuginfo-1.7.3-10.el8.ppc64le.rpm unbound-1.7.3-10.el8.ppc64le.rpm unbound-debuginfo-1.7.3-10.el8.ppc64le.rpm unbound-debugsource-1.7.3-10.el8.ppc64le.rpm unbound-devel-1.7.3-10.el8.ppc64le.rpm unbound-libs-1.7.3-10.el8.ppc64le.rpm unbound-libs-debuginfo-1.7.3-10.el8.ppc64le.rpm
s390x: python3-unbound-1.7.3-10.el8.s390x.rpm python3-unbound-debuginfo-1.7.3-10.el8.s390x.rpm unbound-1.7.3-10.el8.s390x.rpm unbound-debuginfo-1.7.3-10.el8.s390x.rpm unbound-debugsource-1.7.3-10.el8.s390x.rpm unbound-devel-1.7.3-10.el8.s390x.rpm unbound-libs-1.7.3-10.el8.s390x.rpm unbound-libs-debuginfo-1.7.3-10.el8.s390x.rpm
x86_64: python3-unbound-1.7.3-10.el8.x86_64.rpm python3-unbound-debuginfo-1.7.3-10.el8.i686.rpm python3-unbound-debuginfo-1.7.3-10.el8.x86_64.rpm unbound-1.7.3-10.el8.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2020:1716-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1716
Issue date: 2020-04-28

Topic

An update for unbound 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 security update Red Hat dns resolver command injection unbound

Relevant Releases Architectures

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

Bugs Fixed

1775708 - High CPU consumption when log file I/O is slow

1776762 - CVE-2019-18934 unbound: command injection with data coming from a specially crafted IPSECKEY answer

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