ALSA-2021:4586
- Source
- https://errata.almalinux.org/8/ALSA-2021-4586.html
- Import Source
- https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2021:4586.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALSA-2021:4586
- Related
- Published
- 2021-11-10T08:32:49Z
- Modified
- 2021-11-12T16:17:39Z
- Summary
- Moderate: gcc-toolset-11-gcc security update
- Details
-
The gcc packages provide compilers for C, C++, Java, Fortran, Objective C, and Ada 95 GNU, as well as related support libraries.
Security Fix(es):
- Developer environment: Unicode's bidirectional (BiDi) override characters can cause trojan source attacks (CVE-2021-42574)
The following changes were introduced in gcc in order to facilitate detection of BiDi Unicode characters:
This update implements a new warning option -Wbidirectional to warn about possibly dangerous bidirectional characters.
There are three levels of warning supported by gcc: "-Wbidirectional=unpaired", which warns about improperly terminated BiDi contexts. (This is the default.) "-Wbidirectional=none", which turns the warning off. "-Wbidirectional=any", which warns about any use of bidirectional characters.
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.
- References
Affected packages
AlmaLinux:8 / gcc-toolset-11-gcc
Package
- Name
- gcc-toolset-11-gcc
AlmaLinux:8 / gcc-toolset-11-gcc-c++
Package
- Name
- gcc-toolset-11-gcc-c++
AlmaLinux:8 / gcc-toolset-11-gcc-gdb-plugin
Package
- Name
- gcc-toolset-11-gcc-gdb-plugin
AlmaLinux:8 / gcc-toolset-11-gcc-gfortran
Package
- Name
- gcc-toolset-11-gcc-gfortran
AlmaLinux:8 / gcc-toolset-11-gcc-plugin-devel
Package
- Name
- gcc-toolset-11-gcc-plugin-devel
AlmaLinux:8 / gcc-toolset-11-libasan-devel
Package
- Name
- gcc-toolset-11-libasan-devel
AlmaLinux:8 / gcc-toolset-11-libatomic-devel
Package
- Name
- gcc-toolset-11-libatomic-devel
AlmaLinux:8 / gcc-toolset-11-libgccjit
Package
- Name
- gcc-toolset-11-libgccjit
AlmaLinux:8 / gcc-toolset-11-libgccjit-devel
Package
- Name
- gcc-toolset-11-libgccjit-devel
AlmaLinux:8 / gcc-toolset-11-libgccjit-docs
Package
- Name
- gcc-toolset-11-libgccjit-docs
AlmaLinux:8 / gcc-toolset-11-libitm-devel
Package
- Name
- gcc-toolset-11-libitm-devel
AlmaLinux:8 / gcc-toolset-11-liblsan-devel
Package
- Name
- gcc-toolset-11-liblsan-devel
AlmaLinux:8 / gcc-toolset-11-libquadmath-devel
Package
- Name
- gcc-toolset-11-libquadmath-devel
AlmaLinux:8 / gcc-toolset-11-libstdc++-devel
Package
- Name
- gcc-toolset-11-libstdc++-devel
AlmaLinux:8 / gcc-toolset-11-libstdc++-docs
Package
- Name
- gcc-toolset-11-libstdc++-docs
AlmaLinux:8 / gcc-toolset-11-libtsan-devel
Package
- Name
- gcc-toolset-11-libtsan-devel
AlmaLinux:8 / gcc-toolset-11-libubsan-devel
Package
- Name
- gcc-toolset-11-libubsan-devel