gcc-toolset-11-annobin-9.85-1.el8.1, gcc-toolset-11-binutils-2.36.1-1.el8.1, gcc-toolset-11-gcc-11.2.1-1.2.el8

The binutils packages provide a collection of binary utilities for the
manipulation of object code in various object file formats. It includes the ar,
as, gprof, ld, nm, objcopy, objdump, ranlib, readelf, size, strings, strip, and
addr2line utilities.

The gcc packages provide compilers for C, C++, Java, Fortran,
Objective C, and Ada 95 GNU, as well as related support libraries.

Annobin provides a compiler plugin to annotate and tools to examine compiled
binary files.

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 binutils in order to facilitate
detection of BiDi Unicode characters:

Tools which display names or strings (readelf, strings, nm, objdump) have a new
command line option --unicode / -U which controls how Unicode characters are
handled.

Using "--unicode=default" will treat them as normal for the tool. This is the
default behaviour when --unicode option is not used.
Using "--unicode=locale" will display them according to the current locale.
Using "--unicode=hex" will display them as hex byte values.
Using "--unicode=escape" will display them as Unicode escape sequences.
Using "--unicode=highlight" will display them as Unicode escape sequences
highlighted in red, if supported by the output device.

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.

CVE-2021-42574
An issue was discovered in the Bidirectional Algorithm in the Unicode
Specification through 14.0. It permits the visual reordering of characters via
control sequences, which can be used to craft source code that renders different
logic than the logical ordering of tokens ingested by compilers and
interpreters. Adversaries can leverage this to encode source code for compilers
accepting Unicode such that targeted vulnerabilities are introduced invisibly to
human reviewers.