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Red Hat: RHSA-2018-3050 Moderate Alert: GnuTLS Security Update Released

red hat
Calendar Grey October 30, 2018
Dist Redhat Esm H88
Red Hat publishes a significant security bulletin for openssl, tackling numerous vulnerabilities and improvements.
An update for gnutls is now available for Red Hat Enterprise Linux 7

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.
The following packages have been upgraded to a later upstream version: gnutls (3.3.29). (BZ#1561481)
Security Fix(es):
* gnutls: HMAC-SHA-256 vulnerable to Lucky thirteen attack due to not enough dummy function calls (CVE-2018-10844)
* gnutls: HMAC-SHA-384 vulnerable to Lucky thirteen attack due to use of wrong constant (CVE-2018-10845)
* gnutls: "Just in Time" PRIME + PROBE cache-based side channel attack can lead to plaintext recovery (CVE-2018-10846)
For more details about the security issue(s), including the impact, a CVSS score, 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 7.6 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate bug fix Red Hat Enterprise security impact gnutls refresh

References

https://access.redhat.com/security/cve/CVE-2018-10844 https://access.redhat.com/security/cve/CVE-2018-10845 https://access.redhat.com/security/cve/CVE-2018-10846 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.6_release_notes/index

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: gnutls-3.3.29-8.el7.src.rpm
x86_64: gnutls-3.3.29-8.el7.i686.rpm gnutls-3.3.29-8.el7.x86_64.rpm gnutls-dane-3.3.29-8.el7.i686.rpm gnutls-dane-3.3.29-8.el7.x86_64.rpm gnutls-debuginfo-3.3.29-8.el7.i686.rpm gnutls-debuginfo-3.3.29-8.el7.x86_64.rpm gnutls-utils-3.3.29-8.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: gnutls-c++-3.3.29-8.el7.i686.rpm gnutls-c++-3.3.29-8.el7.x86_64.rpm gnutls-debuginfo-3.3.29-8.el7.i686.rpm gnutls-debuginfo-3.3.29-8.el7.x86_64.rpm gnutls-devel-3.3.29-8.el7.i686.rpm gnutls-devel-3.3.29-8.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: gnutls-3.3.29-8.el7.src.rpm
x86_64: gnutls-3.3.29-8.el7.i686.rpm gnutls-3.3.29-8.el7.x86_64.rpm gnutls-dane-3.3.29-8.el7.i686.rpm gnutls-dane-3.3.29-8.el7.x86_64.rpm gnutls-debuginfo-3.3.29-8.el7.i686.rpm gnutls-debuginfo-3.3.29-8.el7.x86_64.rpm gnutls-utils-3.3.29-8.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: gnutls-c++-3.3.29-8.el7.i686.rpm gnutls-c++-3.3.29-8.el7.x86_64.rpm gnutls-debuginfo-3.3.29-8.el7.i686.rpm gnutls-debuginfo-3.3.29-8.el7.x86_64.rpm gnutls-devel-3.3.29-8.el7.i686.rpm gnutls-devel-3.3.29-8.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: gnutls-3.3.29-8.el7.src.rpm


Read the Full Advisory


Advisory ID: RHSA-2018:3050-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3050
Issue date: 2018-10-30

Topic

An update for gnutls is now available for Red Hat Enterprise Linux 7.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 bug fix Red Hat Enterprise security impact gnutls refresh

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x

Bugs Fixed

1375307 - Deleting softhsm PKCS#11 objects does not work with p11tool --(so-)login

1434091 - Session renegotiation fails with client certificates

1444792 - Provide ability to set the expected server name in gnutls-serv utility [rhel-7]

1460125 - p11tool: cannot import private keys into Atos HSM

1464896 - p11tool cannot generate DSA keys

1561481 - Rebase gnutls to upstream version 3.3.29

1582571 - CVE-2018-10844 gnutls: HMAC-SHA-256 vulnerable to Lucky thirteen attack due to not enough dummy function calls

1582572 - CVE-2018-10845 gnutls: HMAC-SHA-384 vulnerable to Lucky thirteen attack due to use of wrong constant

1582574 - CVE-2018-10846 gnutls: "Just in Time" PRIME + PROBE cache-based side channel attack can lead to plaintext recovery

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