-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: binutils security update Advisory ID: RHSA-2021:4033-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:4033 Issue date: 2021-11-01 CVE Names: CVE-2021-42574 ===================================================================== 1. Summary: An update for binutils is now available for Red Hat Enterprise Linux 7. 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 Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - 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 Client (v. 7): Source: binutils-2.27-44.base.el7_9.1.src.rpm x86_64: binutils-2.27-44.base.el7_9.1.x86_64.rpm binutils-debuginfo-2.27-44.base.el7_9.1.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: binutils-debuginfo-2.27-44.base.el7_9.1.i686.rpm binutils-debuginfo-2.27-44.base.el7_9.1.x86_64.rpm binutils-devel-2.27-44.base.el7_9.1.i686.rpm binutils-devel-2.27-44.base.el7_9.1.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: binutils-2.27-44.base.el7_9.1.src.rpm x86_64: binutils-2.27-44.base.el7_9.1.x86_64.rpm binutils-debuginfo-2.27-44.base.el7_9.1.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: binutils-debuginfo-2.27-44.base.el7_9.1.i686.rpm binutils-debuginfo-2.27-44.base.el7_9.1.x86_64.rpm binutils-devel-2.27-44.base.el7_9.1.i686.rpm binutils-devel-2.27-44.base.el7_9.1.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: binutils-2.27-44.base.el7_9.1.src.rpm ppc64: binutils-2.27-44.base.el7_9.1.ppc64.rpm binutils-debuginfo-2.27-44.base.el7_9.1.ppc.rpm binutils-debuginfo-2.27-44.base.el7_9.1.ppc64.rpm binutils-devel-2.27-44.base.el7_9.1.ppc.rpm binutils-devel-2.27-44.base.el7_9.1.ppc64.rpm ppc64le: binutils-2.27-44.base.el7_9.1.ppc64le.rpm binutils-debuginfo-2.27-44.base.el7_9.1.ppc64le.rpm binutils-devel-2.27-44.base.el7_9.1.ppc64le.rpm s390x: binutils-2.27-44.base.el7_9.1.s390x.rpm binutils-debuginfo-2.27-44.base.el7_9.1.s390.rpm binutils-debuginfo-2.27-44.base.el7_9.1.s390x.rpm binutils-devel-2.27-44.base.el7_9.1.s390.rpm binutils-devel-2.27-44.base.el7_9.1.s390x.rpm x86_64: binutils-2.27-44.base.el7_9.1.x86_64.rpm binutils-debuginfo-2.27-44.base.el7_9.1.i686.rpm binutils-debuginfo-2.27-44.base.el7_9.1.x86_64.rpm binutils-devel-2.27-44.base.el7_9.1.i686.rpm binutils-devel-2.27-44.base.el7_9.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: binutils-2.27-44.base.el7_9.1.src.rpm x86_64: binutils-2.27-44.base.el7_9.1.x86_64.rpm binutils-debuginfo-2.27-44.base.el7_9.1.i686.rpm binutils-debuginfo-2.27-44.base.el7_9.1.x86_64.rpm binutils-devel-2.27-44.base.el7_9.1.i686.rpm binutils-devel-2.27-44.base.el7_9.1.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 iQIVAwUBYX+hUtzjgjWX9erEAQiPuw/+OxNFGY3xVZJYdJ6Y6BvfKLGABh+/G67e VlPa8Zp5Jt/FX1khHv7qub7k/QUkIAwJVDAN2SoSuB6/n77tpJJF6vVOdisxnas0 ovB5HXJxZQdOMXe8SH1WzudyEcCkLtAwwT0y9ytcd3Aay1S0ulOEKDGJqt4A5E/O nCSFHWaBv5OHxItQsR8T73GFsbpTtJS+ZgcQYye4VeSToaRHb7vjtEbMLP2ir00Q k1W5NhABNJbZbF9aSlcfLyeEAfk4xM4zjKoNjoiI6mkLP6NwZd+B+RAW4F3oo5L7 ROKFCF2P5xQQEpntU8FPB2br+lH9Jz1mWva0ihhYC5L9iXSjxWPhcYOkS9F95WAd pa/n3RzoBOK+g9St4z+Mox5q/9VTkbV1PVmocO/S5wa4tFonRhN+iNCD386OaOdR 2KaCrotQKElX0MBFnqVB69MArERUUCqOrD7U7V+oreK4eezbT1yOUbGzns8A99C1 kvbXnLpRWoBpIdwv4Icvm/9bB646lh85f4sxl1C7HiAgs8eRnnktyH2K8h51ibZ6 +avim0yrJxrWneoFJieECiwBwb7wGAxGOVtCOA7ShAbo30Ili0j9PjhJektk2sxq MtgFi7ZI6x6DMzS1tyAKd4mkgWl3kf6FV0jYhQ31D0IWZTYisrKCM+UQrPbuB8ct j2n6j5wWMlY= =e3gZ -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce