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Red Hat Enterprise Linux 8 gnutls MITM Risk Advisory RHSA-2020-2637-01

Redhat Large Esm H500
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 Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability
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====================================================================                   Red Hat Security Advisory

Synopsis:          Important: gnutls security update
Advisory ID:       RHSA-2020:2637-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:2637
Issue date:        2020-06-22
CVE Names:         CVE-2020-13777 
====================================================================
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 Important. 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: session resumption works without master key allowing MITM
(CVE-2020-13777)

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/):

1843723 - CVE-2020-13777 gnutls: session resumption works without master key allowing MITM

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

aarch64:
gnutls-c++-3.6.8-11.el8_2.aarch64.rpm
gnutls-c++-debuginfo-3.6.8-11.el8_2.aarch64.rpm
gnutls-dane-3.6.8-11.el8_2.aarch64.rpm
gnutls-dane-debuginfo-3.6.8-11.el8_2.aarch64.rpm
gnutls-debuginfo-3.6.8-11.el8_2.aarch64.rpm
gnutls-debugsource-3.6.8-11.el8_2.aarch64.rpm
gnutls-devel-3.6.8-11.el8_2.aarch64.rpm
gnutls-utils-3.6.8-11.el8_2.aarch64.rpm
gnutls-utils-debuginfo-3.6.8-11.el8_2.aarch64.rpm

ppc64le:
gnutls-c++-3.6.8-11.el8_2.ppc64le.rpm
gnutls-c++-debuginfo-3.6.8-11.el8_2.ppc64le.rpm
gnutls-dane-3.6.8-11.el8_2.ppc64le.rpm
gnutls-dane-debuginfo-3.6.8-11.el8_2.ppc64le.rpm
gnutls-debuginfo-3.6.8-11.el8_2.ppc64le.rpm
gnutls-debugsource-3.6.8-11.el8_2.ppc64le.rpm
gnutls-devel-3.6.8-11.el8_2.ppc64le.rpm
gnutls-utils-3.6.8-11.el8_2.ppc64le.rpm
gnutls-utils-debuginfo-3.6.8-11.el8_2.ppc64le.rpm

s390x:
gnutls-c++-3.6.8-11.el8_2.s390x.rpm
gnutls-c++-debuginfo-3.6.8-11.el8_2.s390x.rpm
gnutls-dane-3.6.8-11.el8_2.s390x.rpm
gnutls-dane-debuginfo-3.6.8-11.el8_2.s390x.rpm
gnutls-debuginfo-3.6.8-11.el8_2.s390x.rpm
gnutls-debugsource-3.6.8-11.el8_2.s390x.rpm
gnutls-devel-3.6.8-11.el8_2.s390x.rpm
gnutls-utils-3.6.8-11.el8_2.s390x.rpm
gnutls-utils-debuginfo-3.6.8-11.el8_2.s390x.rpm

x86_64:
gnutls-c++-3.6.8-11.el8_2.i686.rpm
gnutls-c++-3.6.8-11.el8_2.x86_64.rpm
gnutls-c++-debuginfo-3.6.8-11.el8_2.i686.rpm
gnutls-c++-debuginfo-3.6.8-11.el8_2.x86_64.rpm
gnutls-dane-3.6.8-11.el8_2.i686.rpm
gnutls-dane-3.6.8-11.el8_2.x86_64.rpm
gnutls-dane-debuginfo-3.6.8-11.el8_2.i686.rpm
gnutls-dane-debuginfo-3.6.8-11.el8_2.x86_64.rpm
gnutls-debuginfo-3.6.8-11.el8_2.i686.rpm
gnutls-debuginfo-3.6.8-11.el8_2.x86_64.rpm
gnutls-debugsource-3.6.8-11.el8_2.i686.rpm
gnutls-debugsource-3.6.8-11.el8_2.x86_64.rpm
gnutls-devel-3.6.8-11.el8_2.i686.rpm
gnutls-devel-3.6.8-11.el8_2.x86_64.rpm
gnutls-utils-3.6.8-11.el8_2.x86_64.rpm
gnutls-utils-debuginfo-3.6.8-11.el8_2.i686.rpm
gnutls-utils-debuginfo-3.6.8-11.el8_2.x86_64.rpm

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
gnutls-3.6.8-11.el8_2.src.rpm

aarch64:
gnutls-3.6.8-11.el8_2.aarch64.rpm
gnutls-c++-debuginfo-3.6.8-11.el8_2.aarch64.rpm
gnutls-dane-debuginfo-3.6.8-11.el8_2.aarch64.rpm
gnutls-debuginfo-3.6.8-11.el8_2.aarch64.rpm
gnutls-debugsource-3.6.8-11.el8_2.aarch64.rpm
gnutls-utils-debuginfo-3.6.8-11.el8_2.aarch64.rpm

ppc64le:
gnutls-3.6.8-11.el8_2.ppc64le.rpm
gnutls-c++-debuginfo-3.6.8-11.el8_2.ppc64le.rpm
gnutls-dane-debuginfo-3.6.8-11.el8_2.ppc64le.rpm
gnutls-debuginfo-3.6.8-11.el8_2.ppc64le.rpm
gnutls-debugsource-3.6.8-11.el8_2.ppc64le.rpm
gnutls-utils-debuginfo-3.6.8-11.el8_2.ppc64le.rpm

s390x:
gnutls-3.6.8-11.el8_2.s390x.rpm
gnutls-c++-debuginfo-3.6.8-11.el8_2.s390x.rpm
gnutls-dane-debuginfo-3.6.8-11.el8_2.s390x.rpm
gnutls-debuginfo-3.6.8-11.el8_2.s390x.rpm
gnutls-debugsource-3.6.8-11.el8_2.s390x.rpm
gnutls-utils-debuginfo-3.6.8-11.el8_2.s390x.rpm

x86_64:
gnutls-3.6.8-11.el8_2.i686.rpm
gnutls-3.6.8-11.el8_2.x86_64.rpm
gnutls-c++-debuginfo-3.6.8-11.el8_2.i686.rpm
gnutls-c++-debuginfo-3.6.8-11.el8_2.x86_64.rpm
gnutls-dane-debuginfo-3.6.8-11.el8_2.i686.rpm
gnutls-dane-debuginfo-3.6.8-11.el8_2.x86_64.rpm
gnutls-debuginfo-3.6.8-11.el8_2.i686.rpm
gnutls-debuginfo-3.6.8-11.el8_2.x86_64.rpm
gnutls-debugsource-3.6.8-11.el8_2.i686.rpm
gnutls-debugsource-3.6.8-11.el8_2.x86_64.rpm
gnutls-utils-debuginfo-3.6.8-11.el8_2.i686.rpm
gnutls-utils-debuginfo-3.6.8-11.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-2020-13777
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2020 Red Hat, Inc.
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Red Hat Enterprise Linux 8 gnutls MITM Risk Advisory RHSA-2020-2637-01

red hat
Calendar Grey June 22, 2020
Dist Redhat Esm H88
Important OpenSSL patch released for CentOS systems to fix potential eavesdropping vulnerabilities. Discover the update details here.
An update for gnutls 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 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: session resumption works without master key allowing MITM (CVE-2020-13777)
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.

References

https://access.redhat.com/security/cve/CVE-2020-13777 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: gnutls-c++-3.6.8-11.el8_2.aarch64.rpm gnutls-c++-debuginfo-3.6.8-11.el8_2.aarch64.rpm gnutls-dane-3.6.8-11.el8_2.aarch64.rpm gnutls-dane-debuginfo-3.6.8-11.el8_2.aarch64.rpm gnutls-debuginfo-3.6.8-11.el8_2.aarch64.rpm gnutls-debugsource-3.6.8-11.el8_2.aarch64.rpm gnutls-devel-3.6.8-11.el8_2.aarch64.rpm gnutls-utils-3.6.8-11.el8_2.aarch64.rpm gnutls-utils-debuginfo-3.6.8-11.el8_2.aarch64.rpm
ppc64le: gnutls-c++-3.6.8-11.el8_2.ppc64le.rpm gnutls-c++-debuginfo-3.6.8-11.el8_2.ppc64le.rpm gnutls-dane-3.6.8-11.el8_2.ppc64le.rpm gnutls-dane-debuginfo-3.6.8-11.el8_2.ppc64le.rpm gnutls-debuginfo-3.6.8-11.el8_2.ppc64le.rpm gnutls-debugsource-3.6.8-11.el8_2.ppc64le.rpm gnutls-devel-3.6.8-11.el8_2.ppc64le.rpm gnutls-utils-3.6.8-11.el8_2.ppc64le.rpm gnutls-utils-debuginfo-3.6.8-11.el8_2.ppc64le.rpm
s390x: gnutls-c++-3.6.8-11.el8_2.s390x.rpm gnutls-c++-debuginfo-3.6.8-11.el8_2.s390x.rpm gnutls-dane-3.6.8-11.el8_2.s390x.rpm gnutls-dane-debuginfo-3.6.8-11.el8_2.s390x.rpm gnutls-debuginfo-3.6.8-11.el8_2.s390x.rpm gnutls-debugsource-3.6.8-11.el8_2.s390x.rpm gnutls-devel-3.6.8-11.el8_2.s390x.rpm gnutls-utils-3.6.8-11.el8_2.s390x.rpm gnutls-utils-debuginfo-3.6.8-11.el8_2.s390x.rpm
x86_64: gnutls-c++-3.6.8-11.el8_2.i686.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:2637-01
Product: Red Hat Enterprise Linux
Issue date: 2020-06-22

Topic

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 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.

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

Bugs Fixed

1843723 - CVE-2020-13777 gnutls: session resumption works without master key allowing MITM

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