(RHSA-2020:2274) Moderate: devtoolset-9-gcc security and bug fix update

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.