-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: gcc-toolset-11-gcc security update Advisory ID: RHSA-2021:4586-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:4586 Issue date: 2021-11-10 CVE Names: CVE-2021-42574 ==================================================================== 1. Summary: An update for gcc-toolset-11-gcc 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. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64 3. Description: 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. 4. 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 5. Bugs fixed (https://bugzilla.redhat.com/): 2005819 - CVE-2021-42574 Developer environment: Unicode's bidirectional (BiDi) override characters can cause trojan source attacks 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: gcc-toolset-11-gcc-11.2.1-1.2.el8_5.src.rpm aarch64: gcc-toolset-11-gcc-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-gcc-c++-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-gcc-c++-debuginfo-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-gcc-debuginfo-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-gcc-gdb-plugin-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-gcc-gdb-plugin-debuginfo-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-gcc-gfortran-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-gcc-gfortran-debuginfo-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-gcc-plugin-devel-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-gcc-plugin-devel-debuginfo-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-libasan-devel-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-libatomic-devel-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-libgccjit-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-libgccjit-debuginfo-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-libgccjit-devel-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-libgccjit-docs-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-libitm-devel-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-liblsan-devel-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-libstdc++-devel-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-libstdc++-docs-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-libtsan-devel-11.2.1-1.2.el8_5.aarch64.rpm gcc-toolset-11-libubsan-devel-11.2.1-1.2.el8_5.aarch64.rpm libasan6-11.2.1-1.2.el8_5.aarch64.rpm libasan6-debuginfo-11.2.1-1.2.el8_5.aarch64.rpm ppc64le: gcc-toolset-11-gcc-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-gcc-c++-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-gcc-c++-debuginfo-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-gcc-debuginfo-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-gcc-gdb-plugin-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-gcc-gdb-plugin-debuginfo-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-gcc-gfortran-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-gcc-gfortran-debuginfo-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-gcc-plugin-devel-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-gcc-plugin-devel-debuginfo-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-libasan-devel-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-libatomic-devel-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-libgccjit-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-libgccjit-debuginfo-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-libgccjit-devel-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-libgccjit-docs-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-libitm-devel-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-liblsan-devel-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-libquadmath-devel-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-libstdc++-devel-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-libstdc++-docs-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-libtsan-devel-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-libubsan-devel-11.2.1-1.2.el8_5.ppc64le.rpm gcc-toolset-11-offload-nvptx-debuginfo-11.2.1-1.2.el8_5.ppc64le.rpm libasan6-11.2.1-1.2.el8_5.ppc64le.rpm libasan6-debuginfo-11.2.1-1.2.el8_5.ppc64le.rpm s390x: gcc-toolset-11-gcc-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-gcc-c++-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-gcc-c++-debuginfo-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-gcc-debuginfo-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-gcc-gdb-plugin-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-gcc-gdb-plugin-debuginfo-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-gcc-gfortran-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-gcc-gfortran-debuginfo-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-gcc-plugin-devel-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-gcc-plugin-devel-debuginfo-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-libasan-devel-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-libatomic-devel-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-libgccjit-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-libgccjit-debuginfo-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-libgccjit-devel-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-libgccjit-docs-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-libitm-devel-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-libstdc++-devel-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-libstdc++-docs-11.2.1-1.2.el8_5.s390x.rpm gcc-toolset-11-libubsan-devel-11.2.1-1.2.el8_5.s390x.rpm libasan6-11.2.1-1.2.el8_5.s390x.rpm libasan6-debuginfo-11.2.1-1.2.el8_5.s390x.rpm x86_64: gcc-toolset-11-gcc-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-gcc-c++-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-gcc-c++-debuginfo-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-gcc-c++-debuginfo-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-gcc-debuginfo-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-gcc-debuginfo-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-gcc-gdb-plugin-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-gcc-gdb-plugin-debuginfo-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-gcc-gdb-plugin-debuginfo-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-gcc-gfortran-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-gcc-gfortran-debuginfo-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-gcc-gfortran-debuginfo-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-gcc-plugin-devel-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-gcc-plugin-devel-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-gcc-plugin-devel-debuginfo-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-gcc-plugin-devel-debuginfo-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-libasan-devel-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-libasan-devel-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-libatomic-devel-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-libatomic-devel-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-libgccjit-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-libgccjit-debuginfo-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-libgccjit-debuginfo-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-libgccjit-devel-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-libgccjit-devel-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-libgccjit-docs-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-libitm-devel-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-libitm-devel-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-liblsan-devel-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-libquadmath-devel-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-libquadmath-devel-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-libstdc++-devel-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-libstdc++-devel-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-libstdc++-docs-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-libtsan-devel-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-libubsan-devel-11.2.1-1.2.el8_5.i686.rpm gcc-toolset-11-libubsan-devel-11.2.1-1.2.el8_5.x86_64.rpm gcc-toolset-11-offload-nvptx-debuginfo-11.2.1-1.2.el8_5.x86_64.rpm libasan6-11.2.1-1.2.el8_5.i686.rpm libasan6-11.2.1-1.2.el8_5.x86_64.rpm libasan6-debuginfo-11.2.1-1.2.el8_5.i686.rpm libasan6-debuginfo-11.2.1-1.2.el8_5.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2021-42574 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/security/vulnerabilities/RHSB-2021-007 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYYvaNNzjgjWX9erEAQjk7BAAkzxY3J9vlPeKjN3Q9OW0uTpiQRxBbg7x 5rswHpju/IqPbJWgpXvBphF2IkOghf3CqJ2Qa1X3pJk8c9fhiGLLpmRkEVHBhQtP urjN7AYINcXmD8MU6Dox8XfrA6WrN6eSikg+qP1EadpeA4+M+7qiy6m4BpJCk7CG zdrW9VxIjoHgFGHFWz4E/oLnTW2HCTBeFMIHrrukvbMluryG2r2tAgGEoUZl7Bx+ q8lZ5fQX0RTzTxT+M+r7RLUsi3jUlsZSE910GdGLVSD8j8SRQDMOeUBts6PW7mmr 1+HGyJC5tbX3LP/qbJajY9814nSYOmO3JT3evWHwUzKnYOy9x35PtxT0RYJ2k8rf X6RmnSsntSDwAYOeaCVGUBAqNCoP5RGrL2Y1CT4B3SQwZ4Y3wlTwa/tyHxGNyWz2 cNiYLHzfYmhVspQ2G9tgGjsypLK4UDixxgFclbzGv9eyxS+D1KuU2PSPLRkjlmqy dQGm7dwoCkSuAeYj85nnEZxxEdlVWauhfZe1Dj0M2Z4RdETAyWg3bAe3WrsH+ev0 OThTDQ67h2RARvYDlQUioBUwjOlyeLOGkWAP/p0VvqIgxSu+rMccGbKt9T3lHFGi D8XZxHVz7eJLOkHmmZFG09uSNXBEn2IYBYiE2RWZOL/zEdx93pA1A0GhP/Sq3b5Q FvjTsFg/Fq4=j6VK -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce