Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.3894
devtoolset-11-gcc security update
16 November 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: devtoolset-11-gcc
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Provide Misleading Information -- Existing Account
Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-42574
Reference: ESB-2021.3886
Original Bulletin:
https://access.redhat.com/errata/RHSA-2021:4669
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Red Hat Security Advisory
Synopsis: Moderate: devtoolset-11-gcc security update
Advisory ID: RHSA-2021:4669-01
Product: Red Hat Software Collections
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4669
Issue date: 2021-11-15
CVE Names: CVE-2021-42574
=====================================================================
1. Summary:
An update for devtoolset-11-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.
2. Relevant releases/architectures:
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) - ppc64, ppc64le, s390x, x86_64
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - x86_64
3. Description:
The GNU Compiler Collection (GCC) is a portable compiler suite with support
for various programming languages, including C, C++, and Fortran. The
devtoolset-11-gcc packages provide the Red Hat Developer Toolset version of
GCC, as well as related 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 Software Collections for Red Hat Enterprise Linux Server (v. 7):
Source:
devtoolset-11-gcc-11.2.1-1.2.el7.src.rpm
ppc64:
devtoolset-11-gcc-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-gcc-c++-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-gcc-debuginfo-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-gcc-gdb-plugin-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-gcc-gfortran-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-gcc-plugin-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libasan-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libatomic-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libgccjit-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libgccjit-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libgccjit-docs-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libitm-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-liblsan-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libquadmath-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libstdc++-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libstdc++-docs-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libtsan-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libubsan-devel-11.2.1-1.2.el7.ppc64.rpm
libasan6-11.2.1-1.2.el7.ppc64.rpm
liblsan-11.2.1-1.2.el7.ppc64.rpm
libtsan-11.2.1-1.2.el7.ppc64.rpm
libubsan1-11.2.1-1.2.el7.ppc64.rpm
ppc64le:
devtoolset-11-gcc-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-gcc-c++-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-gcc-debuginfo-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-gcc-gdb-plugin-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-gcc-gfortran-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-gcc-plugin-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libasan-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libatomic-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libgccjit-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libgccjit-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libgccjit-docs-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libitm-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-liblsan-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libquadmath-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libstdc++-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libstdc++-docs-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libtsan-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libubsan-devel-11.2.1-1.2.el7.ppc64le.rpm
libasan6-11.2.1-1.2.el7.ppc64le.rpm
liblsan-11.2.1-1.2.el7.ppc64le.rpm
libtsan-11.2.1-1.2.el7.ppc64le.rpm
libubsan1-11.2.1-1.2.el7.ppc64le.rpm
s390x:
devtoolset-11-gcc-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-gcc-c++-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-gcc-debuginfo-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-gcc-gdb-plugin-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-gcc-gfortran-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-gcc-plugin-devel-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libasan-devel-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libatomic-devel-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libgccjit-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libgccjit-devel-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libgccjit-docs-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libitm-devel-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libstdc++-devel-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libstdc++-docs-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libubsan-devel-11.2.1-1.2.el7.s390x.rpm
libasan6-11.2.1-1.2.el7.s390x.rpm
libubsan1-11.2.1-1.2.el7.s390x.rpm
x86_64:
devtoolset-11-gcc-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-c++-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-debuginfo-11.2.1-1.2.el7.i686.rpm
devtoolset-11-gcc-debuginfo-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-gdb-plugin-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-gfortran-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-plugin-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libasan-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libasan-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libatomic-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libatomic-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libgccjit-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libgccjit-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libgccjit-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libgccjit-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libgccjit-docs-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libitm-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libitm-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-liblsan-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libquadmath-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libquadmath-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libstdc++-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libstdc++-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libstdc++-docs-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libtsan-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libubsan-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libubsan-devel-11.2.1-1.2.el7.x86_64.rpm
libasan6-11.2.1-1.2.el7.i686.rpm
libasan6-11.2.1-1.2.el7.x86_64.rpm
liblsan-11.2.1-1.2.el7.x86_64.rpm
libtsan-11.2.1-1.2.el7.x86_64.rpm
libubsan1-11.2.1-1.2.el7.i686.rpm
libubsan1-11.2.1-1.2.el7.x86_64.rpm
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7):
Source:
devtoolset-11-gcc-11.2.1-1.2.el7.src.rpm
ppc64:
devtoolset-11-gcc-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-gcc-c++-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-gcc-debuginfo-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-gcc-gdb-plugin-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-gcc-gfortran-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-gcc-plugin-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libasan-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libatomic-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libgccjit-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libgccjit-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libgccjit-docs-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libitm-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-liblsan-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libquadmath-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libstdc++-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libstdc++-docs-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libtsan-devel-11.2.1-1.2.el7.ppc64.rpm
devtoolset-11-libubsan-devel-11.2.1-1.2.el7.ppc64.rpm
libasan6-11.2.1-1.2.el7.ppc64.rpm
liblsan-11.2.1-1.2.el7.ppc64.rpm
libtsan-11.2.1-1.2.el7.ppc64.rpm
libubsan1-11.2.1-1.2.el7.ppc64.rpm
ppc64le:
devtoolset-11-gcc-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-gcc-c++-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-gcc-debuginfo-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-gcc-gdb-plugin-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-gcc-gfortran-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-gcc-plugin-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libasan-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libatomic-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libgccjit-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libgccjit-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libgccjit-docs-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libitm-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-liblsan-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libquadmath-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libstdc++-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libstdc++-docs-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libtsan-devel-11.2.1-1.2.el7.ppc64le.rpm
devtoolset-11-libubsan-devel-11.2.1-1.2.el7.ppc64le.rpm
libasan6-11.2.1-1.2.el7.ppc64le.rpm
liblsan-11.2.1-1.2.el7.ppc64le.rpm
libtsan-11.2.1-1.2.el7.ppc64le.rpm
libubsan1-11.2.1-1.2.el7.ppc64le.rpm
s390x:
devtoolset-11-gcc-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-gcc-c++-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-gcc-debuginfo-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-gcc-gdb-plugin-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-gcc-gfortran-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-gcc-plugin-devel-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libasan-devel-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libatomic-devel-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libgccjit-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libgccjit-devel-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libgccjit-docs-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libitm-devel-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libstdc++-devel-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libstdc++-docs-11.2.1-1.2.el7.s390x.rpm
devtoolset-11-libubsan-devel-11.2.1-1.2.el7.s390x.rpm
libasan6-11.2.1-1.2.el7.s390x.rpm
libubsan1-11.2.1-1.2.el7.s390x.rpm
x86_64:
devtoolset-11-gcc-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-c++-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-debuginfo-11.2.1-1.2.el7.i686.rpm
devtoolset-11-gcc-debuginfo-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-gdb-plugin-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-gfortran-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-plugin-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libasan-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libasan-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libatomic-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libatomic-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libgccjit-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libgccjit-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libgccjit-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libgccjit-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libgccjit-docs-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libitm-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libitm-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-liblsan-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libquadmath-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libquadmath-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libstdc++-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libstdc++-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libstdc++-docs-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libtsan-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libubsan-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libubsan-devel-11.2.1-1.2.el7.x86_64.rpm
libasan6-11.2.1-1.2.el7.i686.rpm
libasan6-11.2.1-1.2.el7.x86_64.rpm
liblsan-11.2.1-1.2.el7.x86_64.rpm
libtsan-11.2.1-1.2.el7.x86_64.rpm
libubsan1-11.2.1-1.2.el7.i686.rpm
libubsan1-11.2.1-1.2.el7.x86_64.rpm
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7):
Source:
devtoolset-11-gcc-11.2.1-1.2.el7.src.rpm
x86_64:
devtoolset-11-gcc-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-c++-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-debuginfo-11.2.1-1.2.el7.i686.rpm
devtoolset-11-gcc-debuginfo-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-gdb-plugin-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-gfortran-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-gcc-plugin-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libasan-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libasan-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libatomic-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libatomic-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libgccjit-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libgccjit-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libgccjit-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libgccjit-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libgccjit-docs-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libitm-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libitm-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-liblsan-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libquadmath-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libquadmath-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libstdc++-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libstdc++-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libstdc++-docs-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libtsan-devel-11.2.1-1.2.el7.x86_64.rpm
devtoolset-11-libubsan-devel-11.2.1-1.2.el7.i686.rpm
devtoolset-11-libubsan-devel-11.2.1-1.2.el7.x86_64.rpm
libasan6-11.2.1-1.2.el7.i686.rpm
libasan6-11.2.1-1.2.el7.x86_64.rpm
liblsan-11.2.1-1.2.el7.x86_64.rpm
libtsan-11.2.1-1.2.el7.x86_64.rpm
libubsan1-11.2.1-1.2.el7.i686.rpm
libubsan1-11.2.1-1.2.el7.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 <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
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Qld 4072
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===========================================================================
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