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RedHat Enterprise Linux 8: RHSA-2019-3600-01 Moderate: GnuTLS Security Fix

red hat
Calendar Grey November 5, 2019
Dist Redhat Esm H88
GnuTLS package update released for Red Hat Linux 8, classified as medium severity, featuring critical bug resolutions and performance improvements.
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

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 (3.6.8). (BZ#1689967)
Security Fix(es):
* gnutls: use-after-free/double-free in certificate verification (CVE-2019-3829)
* gnutls: invalid pointer access upon receiving async handshake messages (CVE-2019-3836)
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 8.1 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate update red hat gnutls certificate verification type access

References

https://access.redhat.com/security/cve/CVE-2019-3829 https://access.redhat.com/security/cve/CVE-2019-3836 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.1_release_notes/

Package List

Red Hat Enterprise Linux AppStream (v. 8):
aarch64: gnutls-c++-3.6.8-8.el8.aarch64.rpm gnutls-c++-debuginfo-3.6.8-8.el8.aarch64.rpm gnutls-dane-3.6.8-8.el8.aarch64.rpm gnutls-dane-debuginfo-3.6.8-8.el8.aarch64.rpm gnutls-debuginfo-3.6.8-8.el8.aarch64.rpm gnutls-debugsource-3.6.8-8.el8.aarch64.rpm gnutls-devel-3.6.8-8.el8.aarch64.rpm gnutls-utils-3.6.8-8.el8.aarch64.rpm gnutls-utils-debuginfo-3.6.8-8.el8.aarch64.rpm
ppc64le: gnutls-c++-3.6.8-8.el8.ppc64le.rpm gnutls-c++-debuginfo-3.6.8-8.el8.ppc64le.rpm gnutls-dane-3.6.8-8.el8.ppc64le.rpm gnutls-dane-debuginfo-3.6.8-8.el8.ppc64le.rpm gnutls-debuginfo-3.6.8-8.el8.ppc64le.rpm gnutls-debugsource-3.6.8-8.el8.ppc64le.rpm gnutls-devel-3.6.8-8.el8.ppc64le.rpm gnutls-utils-3.6.8-8.el8.ppc64le.rpm gnutls-utils-debuginfo-3.6.8-8.el8.ppc64le.rpm
s390x: gnutls-c++-3.6.8-8.el8.s390x.rpm gnutls-c++-debuginfo-3.6.8-8.el8.s390x.rpm gnutls-dane-3.6.8-8.el8.s390x.rpm gnutls-dane-debuginfo-3.6.8-8.el8.s390x.rpm gnutls-debuginfo-3.6.8-8.el8.s390x.rpm gnutls-debugsource-3.6.8-8.el8.s390x.rpm gnutls-devel-3.6.8-8.el8.s390x.rpm gnutls-utils-3.6.8-8.el8.s390x.rpm gnutls-utils-debuginfo-3.6.8-8.el8.s390x.rpm
x86_64: gnutls-c++-3.6.8-8.el8.i686.rpm gnutls-c++-3.6.8-8.el8.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2019:3600-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3600
Issue date: 2019-11-05

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 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.

Topics%20covered

Topics Covered

security advisory moderate update red hat gnutls certificate verification type access

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

1667427 - Multiple issues in implementation of record_size_limit extension (RFC 8449)

1673975 - gnutls does not support multiple KeyUpdate messages on a connection

1677048 - CVE-2019-3829 gnutls: use-after-free/double-free in certificate verification

1678411 - CVE-2019-3836 gnutls: invalid pointer access upon receiving async handshake messages

1680509 - Missing comparison with known good signature in RSA power on self test

1680510 - Missing power on self tests for SHA3

1684461 - Implement gnutls_aead_cipher_(en|de)crypt_vec() API in GnuTLS

1684534 - p11tool fails to list private keys with 'pin-value' specified in PKCS#11 URI

1686579 - GnuTLS server sends downgrade sentinel when negotiating TLS 1.3

1686582 - Incorrect handling of fragmented KeyUpdate messages

1690440 - selftest fails in FIPS mode

1691448 - TLS Keying Material Exporter is unsupported by command line tools

1705478 - gnutls fails with PKCS#11 URIs without module specification

1706921 - GnuTLS should implement continuous random test or use the kernel AF_ALG interface for random

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