This update for gcc9 fixes the following issues :

The GNU Compiler Collection is shipped in version 9.

A detailed changelog on what changed in GCC 9 is available at https://gcc.gnu.org/gcc-9/changes.html

The compilers have been added to the SUSE Linux Enterprise Toolchain Module.

To use these compilers, install e.g. gcc9, gcc9-c++ and build with CC=gcc-9 CXX=g++-9 set.

For SUSE Linux Enterprise base products, the libstdc++6, libgcc_s1 and other compiler libraries have been switched from their gcc8 variants to their gcc9 variants.

Security issues fixed :

CVE-2019-15847: Fixed a miscompilation in the POWER9 back end, that optimized multiple calls of the __builtin_darn intrinsic into a single call. (bsc#1149145)

CVE-2019-14250: Fixed a heap overflow in the LTO linker. (bsc#1142649)

Non-security issues fixed: Split out libstdc++ pretty-printers into a separate package supplementing gdb and the installed runtime.
(bsc#1135254)

Fixed miscompilation for vector shift on s390. (bsc#1141897)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

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SUSE SLES12 Security Update : gcc9 (SUSE-SU-2020:0394-1)

high Nessus Plugin ID 133791

Version 1.4