-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: gcc-toolset-10-binutils security update Advisory ID: RHSA-2021:4649-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:4649 Issue date: 2021-11-15 CVE Names: CVE-2021-42574 ===================================================================== 1. Summary: An update for gcc-toolset-10-binutils 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 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. 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. 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-10-binutils-2.35-8.el8_5.6.src.rpm aarch64: gcc-toolset-10-binutils-2.35-8.el8_5.6.aarch64.rpm gcc-toolset-10-binutils-debuginfo-2.35-8.el8_5.6.aarch64.rpm gcc-toolset-10-binutils-devel-2.35-8.el8_5.6.aarch64.rpm ppc64le: gcc-toolset-10-binutils-2.35-8.el8_5.6.ppc64le.rpm gcc-toolset-10-binutils-debuginfo-2.35-8.el8_5.6.ppc64le.rpm gcc-toolset-10-binutils-devel-2.35-8.el8_5.6.ppc64le.rpm s390x: gcc-toolset-10-binutils-2.35-8.el8_5.6.s390x.rpm gcc-toolset-10-binutils-debuginfo-2.35-8.el8_5.6.s390x.rpm gcc-toolset-10-binutils-devel-2.35-8.el8_5.6.s390x.rpm x86_64: gcc-toolset-10-binutils-2.35-8.el8_5.6.x86_64.rpm gcc-toolset-10-binutils-debuginfo-2.35-8.el8_5.6.i686.rpm gcc-toolset-10-binutils-debuginfo-2.35-8.el8_5.6.x86_64.rpm gcc-toolset-10-binutils-devel-2.35-8.el8_5.6.i686.rpm gcc-toolset-10-binutils-devel-2.35-8.el8_5.6.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 iQIVAwUBYZJx4NzjgjWX9erEAQi7Mg/8C+EFYgYwuWp6MLLB7rkvM56oomd0pn0/ 1FICg0onhz/TeHVep3q83NLFWauu4PVUAjbpaqA4y6g8bReldrn9wy+tao+QhWd+ vS+2y9xGHEhx3CmrRc3tChNPvCvaEqFxQIXEovsTbY3WreYQr7YWVGsmcc05DcuI oFsK6Xszl6kIA9WlT/HweeKDPJBq/KOzkNZg20UnqzH3dW21on8SkabbVZI+BRLO JcLl0y9JuqUF3/4n8ejTTonR15dGekuLlugU2r4KNTvtZxIhtuYDvKSM7QJtj+1Y 1EZJf1uGgGs9CrRTBC7jkSYjDxmFIWZLPrrB4yArMcTdL9ak95iHyfLsI2S0DTXQ o1uObMjRFzEESrUY1ZAaAwPV9X9fpwIysUhNHRma5dP3aaMB1dD8hJtpR6oI5pIe vai++eJiagGPHE9BoMZeska9PjdAf5MfwMaQ4rtErD9C1gwYgjE0h8lQNlRdNuKz 5dOgw5+VfGZpyH7i8NBFfZOcNwR/upxDDWOPVa/KcDGOtXam+YCtW7NBfVRspxqO p2eR5bp+RHSXW2ZO2++ibVdGioqcTv/pNqGjizEdXVkmhmXKLPxmpPHa0wkDn7tx CLp2JSAKUIEfMR8+7NLrZIZKppecjNOFd/AWkvkzQ3LWqUgUkx4hB+AywHZx4kD8 eDVs1OIfgiI= =/GSZ -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce