Red Hat Security Advisory 2020-1998-01 - The gnutls packages provide the GNU Transport Layer Security library, which implements cryptographic algorithms and protocols such as SSL, TLS, and DTLS. An issue was addressed where the DTLS client hello contains a random value of all zeroes.
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Red Hat Security Advisory
Synopsis: Moderate: gnutls security update
Advisory ID: RHSA-2020:1998-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1998
Issue date: 2020-04-30
CVE Names: CVE-2020-11501
=====================================================================
1. Summary:
An update for gnutls 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
Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64
3. Description:
The gnutls packages provide the GNU Transport Layer Security (GnuTLS)
library, which implements cryptographic algorithms and protocols such as
SSL, TLS, and DTLS.
Security Fix(es):
* gnutls: DTLS client hello contains a random value of all zeroes
(CVE-2020-11501)
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.
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/):
1821896 - CVE-2020-11501 gnutls: DTLS client hello contains a random value of all zeroes
6. Package List:
Red Hat Enterprise Linux AppStream (v. 8):
aarch64:
gnutls-c++-3.6.8-10.el8_2.aarch64.rpm
gnutls-c++-debuginfo-3.6.8-10.el8_2.aarch64.rpm
gnutls-dane-3.6.8-10.el8_2.aarch64.rpm
gnutls-dane-debuginfo-3.6.8-10.el8_2.aarch64.rpm
gnutls-debuginfo-3.6.8-10.el8_2.aarch64.rpm
gnutls-debugsource-3.6.8-10.el8_2.aarch64.rpm
gnutls-devel-3.6.8-10.el8_2.aarch64.rpm
gnutls-utils-3.6.8-10.el8_2.aarch64.rpm
gnutls-utils-debuginfo-3.6.8-10.el8_2.aarch64.rpm
ppc64le:
gnutls-c++-3.6.8-10.el8_2.ppc64le.rpm
gnutls-c++-debuginfo-3.6.8-10.el8_2.ppc64le.rpm
gnutls-dane-3.6.8-10.el8_2.ppc64le.rpm
gnutls-dane-debuginfo-3.6.8-10.el8_2.ppc64le.rpm
gnutls-debuginfo-3.6.8-10.el8_2.ppc64le.rpm
gnutls-debugsource-3.6.8-10.el8_2.ppc64le.rpm
gnutls-devel-3.6.8-10.el8_2.ppc64le.rpm
gnutls-utils-3.6.8-10.el8_2.ppc64le.rpm
gnutls-utils-debuginfo-3.6.8-10.el8_2.ppc64le.rpm
s390x:
gnutls-c++-3.6.8-10.el8_2.s390x.rpm
gnutls-c++-debuginfo-3.6.8-10.el8_2.s390x.rpm
gnutls-dane-3.6.8-10.el8_2.s390x.rpm
gnutls-dane-debuginfo-3.6.8-10.el8_2.s390x.rpm
gnutls-debuginfo-3.6.8-10.el8_2.s390x.rpm
gnutls-debugsource-3.6.8-10.el8_2.s390x.rpm
gnutls-devel-3.6.8-10.el8_2.s390x.rpm
gnutls-utils-3.6.8-10.el8_2.s390x.rpm
gnutls-utils-debuginfo-3.6.8-10.el8_2.s390x.rpm
x86_64:
gnutls-c++-3.6.8-10.el8_2.i686.rpm
gnutls-c++-3.6.8-10.el8_2.x86_64.rpm
gnutls-c++-debuginfo-3.6.8-10.el8_2.i686.rpm
gnutls-c++-debuginfo-3.6.8-10.el8_2.x86_64.rpm
gnutls-dane-3.6.8-10.el8_2.i686.rpm
gnutls-dane-3.6.8-10.el8_2.x86_64.rpm
gnutls-dane-debuginfo-3.6.8-10.el8_2.i686.rpm
gnutls-dane-debuginfo-3.6.8-10.el8_2.x86_64.rpm
gnutls-debuginfo-3.6.8-10.el8_2.i686.rpm
gnutls-debuginfo-3.6.8-10.el8_2.x86_64.rpm
gnutls-debugsource-3.6.8-10.el8_2.i686.rpm
gnutls-debugsource-3.6.8-10.el8_2.x86_64.rpm
gnutls-devel-3.6.8-10.el8_2.i686.rpm
gnutls-devel-3.6.8-10.el8_2.x86_64.rpm
gnutls-utils-3.6.8-10.el8_2.x86_64.rpm
gnutls-utils-debuginfo-3.6.8-10.el8_2.i686.rpm
gnutls-utils-debuginfo-3.6.8-10.el8_2.x86_64.rpm
Red Hat Enterprise Linux BaseOS (v. 8):
Source:
gnutls-3.6.8-10.el8_2.src.rpm
aarch64:
gnutls-3.6.8-10.el8_2.aarch64.rpm
gnutls-c++-debuginfo-3.6.8-10.el8_2.aarch64.rpm
gnutls-dane-debuginfo-3.6.8-10.el8_2.aarch64.rpm
gnutls-debuginfo-3.6.8-10.el8_2.aarch64.rpm
gnutls-debugsource-3.6.8-10.el8_2.aarch64.rpm
gnutls-utils-debuginfo-3.6.8-10.el8_2.aarch64.rpm
ppc64le:
gnutls-3.6.8-10.el8_2.ppc64le.rpm
gnutls-c++-debuginfo-3.6.8-10.el8_2.ppc64le.rpm
gnutls-dane-debuginfo-3.6.8-10.el8_2.ppc64le.rpm
gnutls-debuginfo-3.6.8-10.el8_2.ppc64le.rpm
gnutls-debugsource-3.6.8-10.el8_2.ppc64le.rpm
gnutls-utils-debuginfo-3.6.8-10.el8_2.ppc64le.rpm
s390x:
gnutls-3.6.8-10.el8_2.s390x.rpm
gnutls-c++-debuginfo-3.6.8-10.el8_2.s390x.rpm
gnutls-dane-debuginfo-3.6.8-10.el8_2.s390x.rpm
gnutls-debuginfo-3.6.8-10.el8_2.s390x.rpm
gnutls-debugsource-3.6.8-10.el8_2.s390x.rpm
gnutls-utils-debuginfo-3.6.8-10.el8_2.s390x.rpm
x86_64:
gnutls-3.6.8-10.el8_2.i686.rpm
gnutls-3.6.8-10.el8_2.x86_64.rpm
gnutls-c++-debuginfo-3.6.8-10.el8_2.i686.rpm
gnutls-c++-debuginfo-3.6.8-10.el8_2.x86_64.rpm
gnutls-dane-debuginfo-3.6.8-10.el8_2.i686.rpm
gnutls-dane-debuginfo-3.6.8-10.el8_2.x86_64.rpm
gnutls-debuginfo-3.6.8-10.el8_2.i686.rpm
gnutls-debuginfo-3.6.8-10.el8_2.x86_64.rpm
gnutls-debugsource-3.6.8-10.el8_2.i686.rpm
gnutls-debugsource-3.6.8-10.el8_2.x86_64.rpm
gnutls-utils-debuginfo-3.6.8-10.el8_2.i686.rpm
gnutls-utils-debuginfo-3.6.8-10.el8_2.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-2020-11501
https://access.redhat.com/security/updates/classification/#moderate
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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