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Red Hat Security Advisory
Synopsis: Moderate: unbound security update
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
CVE Names: CVE-2019-18934
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1. Summary:
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 impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AppStream (v. 8) – aarch64, ppc64le, s390x, x86_64
3. Description:
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.
4. 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
5. Bugs fixed (https://bugzilla.redhat.com/):
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
6. 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
unbound-debuginfo-1.7.3-10.el8.i686.rpm
unbound-debuginfo-1.7.3-10.el8.x86_64.rpm
unbound-debugsource-1.7.3-10.el8.i686.rpm
unbound-debugsource-1.7.3-10.el8.x86_64.rpm
unbound-devel-1.7.3-10.el8.i686.rpm
unbound-devel-1.7.3-10.el8.x86_64.rpm
unbound-libs-1.7.3-10.el8.i686.rpm
unbound-libs-1.7.3-10.el8.x86_64.rpm
unbound-libs-debuginfo-1.7.3-10.el8.i686.rpm
unbound-libs-debuginfo-1.7.3-10.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. 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
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
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