Synopsis
Moderate: devtoolset-9-gcc security and bug fix update
Type/Severity
Security Advisory: Moderate
Topic
An update for devtoolset-9-gcc is now available for Red Hat Software Collections.
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.
Description
The GNU Compiler Collection (GCC) is a portable compiler suite with support for various programming languages, including C, C++, and Fortran. The devtoolset-9-gcc packages provide the Red Hat Developer Toolset version of GCC, as well as related libraries.
The following packages have been upgraded to a later upstream version: devtoolset-9-gcc (9.3.1).
Security Fix(es):
- gcc: POWER9 "DARN" RNG intrinsic produces repeated output (CVE-2019-15847)
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.
Bug Fix(es):
- Compiler vectorizes the loop incorrectly when the loop is inlined (BZ#1769410)
- Update gcc for DTS 9.1 RHEL 7 (BZ#1783475)
- g++ rejects a valid code (BZ#1802608)
- Update gcc for DTS 9.1 from upstream GCC 9.3 (BZ#1812147)
Additional Changes:
For detailed changes in this release, see the Red Hat Developer Toolset 9.1 User Guide linked from the References section.
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
Affected Products
-
Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.7 x86_64
-
Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7.7 s390x
-
Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7.7 ppc64le
-
Red Hat Software Collections (for RHEL Server for IBM Power) 1 for RHEL 7.7 ppc64
-
Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.6 x86_64
-
Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7.6 s390x
-
Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7.6 ppc64le
-
Red Hat Software Collections (for RHEL Server for IBM Power) 1 for RHEL 7.6 ppc64
-
Red Hat Software Collections (for RHEL Server) 1 for RHEL 7 x86_64
-
Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7 s390x
-
Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7 ppc64le
-
Red Hat Software Collections (for RHEL Server for IBM Power) 1 for RHEL 7 ppc64
-
Red Hat Software Collections (for RHEL Server for ARM) 1 aarch64
-
Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 7 x86_64
Fixes
- BZ - 1755523 - CVE-2019-15847 gcc: POWER9 "DARN" RNG intrinsic produces repeated output
- BZ - 1769410 - Compiler vectorizes the loop incorrectly when the loop is inlined
- BZ - 1783475 - Update gcc for DTS 9.1 RHEL 7
- BZ - 1802608 - g++ rejects a valid code
- BZ - 1812147 - Update gcc for DTS 9.1 from upstream GCC 9.3
CVEs
References
Vulmon