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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.3783 binutils security update 10 November 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: binutils Publisher: Red Hat Operating System: Red Hat Impact/Access: Modify Arbitrary Files -- Existing Account Denial of Service -- Existing Account Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-20284 CVE-2021-20197 CVE-2021-3487 CVE-2020-35448 Reference: ESB-2021.3660 ESB-2021.3549 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:4364 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: binutils security update Advisory ID: RHSA-2021:4364-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:4364 Issue date: 2021-11-09 CVE Names: CVE-2020-35448 CVE-2021-3487 CVE-2021-20197 CVE-2021-20284 ===================================================================== 1. Summary: An update for 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 Red Hat Enterprise Linux BaseOS (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): * binutils: Excessive debug section size can cause excessive memory consumption in bfd's dwarf2.c read_section() (CVE-2021-3487) * binutils: Race window allows users to own arbitrary files (CVE-2021-20197) * binutils: Heap-based buffer overflow in bfd_getl_signed_32() in libbfd.c because sh_entsize is not validated in _bfd_elf_slurp_secondary_reloc_section() in elf.c (CVE-2020-35448) * binutils: Heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c (CVE-2021-20284) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from 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/): 1913743 - CVE-2021-20197 binutils: Race window allows users to own arbitrary files 1924068 - binutils debuginfo misses code for bfd functions 1930988 - Backport breaks building with LTO 1935785 - Linker garbage collection removes weak alias references (possibly "regression" of bz1804325) 1937784 - CVE-2021-20284 binutils: Heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c 1946518 - binutils-2.30-98 are causing go binaries to crash due to segmentation fault on aarch64 1946977 - pthread_join segfaults in stack unwinding 1947111 - CVE-2021-3487 binutils: Excessive debug section size can cause excessive memory consumption in bfd's dwarf2.c read_section() 1950478 - CVE-2020-35448 binutils: Heap-based buffer overflow in bfd_getl_signed_32() in libbfd.c because sh_entsize is not validated in _bfd_elf_slurp_secondary_reloc_section() in elf.c 1969775 - /usr/bin/ld: Dwarf Error: Offset (2487097600) greater than or equal to .debug_str size (571933). 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): aarch64: binutils-debuginfo-2.30-108.el8.aarch64.rpm binutils-debugsource-2.30-108.el8.aarch64.rpm binutils-devel-2.30-108.el8.aarch64.rpm ppc64le: binutils-debuginfo-2.30-108.el8.ppc64le.rpm binutils-debugsource-2.30-108.el8.ppc64le.rpm binutils-devel-2.30-108.el8.ppc64le.rpm s390x: binutils-debuginfo-2.30-108.el8.s390x.rpm binutils-debugsource-2.30-108.el8.s390x.rpm binutils-devel-2.30-108.el8.s390x.rpm x86_64: binutils-debuginfo-2.30-108.el8.i686.rpm binutils-debuginfo-2.30-108.el8.x86_64.rpm binutils-debugsource-2.30-108.el8.i686.rpm binutils-debugsource-2.30-108.el8.x86_64.rpm binutils-devel-2.30-108.el8.i686.rpm binutils-devel-2.30-108.el8.x86_64.rpm Red Hat Enterprise Linux BaseOS (v. 8): Source: binutils-2.30-108.el8.src.rpm aarch64: binutils-2.30-108.el8.aarch64.rpm binutils-debuginfo-2.30-108.el8.aarch64.rpm binutils-debugsource-2.30-108.el8.aarch64.rpm ppc64le: binutils-2.30-108.el8.ppc64le.rpm binutils-debuginfo-2.30-108.el8.ppc64le.rpm binutils-debugsource-2.30-108.el8.ppc64le.rpm s390x: binutils-2.30-108.el8.s390x.rpm binutils-debuginfo-2.30-108.el8.s390x.rpm binutils-debugsource-2.30-108.el8.s390x.rpm x86_64: binutils-2.30-108.el8.x86_64.rpm binutils-debuginfo-2.30-108.el8.x86_64.rpm binutils-debugsource-2.30-108.el8.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-2020-35448 https://access.redhat.com/security/cve/CVE-2021-3487 https://access.redhat.com/security/cve/CVE-2021-20197 https://access.redhat.com/security/cve/CVE-2021-20284 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/ 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. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYYrcWdzjgjWX9erEAQgOuA//ddTY+J3xDL8Z+2Gi+qcbItkoW0B8nKrt hqWmx6c/KlhAtLnAbIh18N+1uPMAXGNZcKHtCJfFSIAP3B71jDBqA+CRqlhiapmg ze4qYNpUwBg0e2c/6w0V5GYhIXpdsyiKXTpjmnaxnzW61tiCCWFBZoWpzJjSId1X yR7vHjDaXT1CZl0fHS/5Y9NfK/7jjgkJv7U7wcUxEsy6bMQIzM0nMLZauVmIrsC0 vu1bhQifEJH1mnoykfnlRVSEe+qGMrEtnOCnos8GTGChmVt4bgogpb5oE4JFm+bs ufjpRwSC1X5XRv9aqTX/ixIFLCeFpZkYhFLUlZqYHNKRcRlcqz5MLFA6KYdTj9zt 2ygqd5o26ml7gVHyA+BGE/pzd5m9YTzNvrWbC/ZV6loHM1nHUIBW/Y+hneSWTCkH x1LCmTnYxyPz0ZjySbCy03SJPrRewe/xPlxJlCmqLfVh+hEvCHsSw9hnYC3+pvMB xIl5HNf34dc/lJsPXo65owsDNcTlKF7gfVG3eKjcNnu1Uh9LzCYG8PKMtougZgV3 mAviF8MhgWVLXJTo6BXtF605ivViFoyis0bFJCV6uihV+nfAesWVN3rnIeDMh2sV EA9zQyxzy2nQsDMJ4eLV5ckrl7YzGsJt+B9jwLXbGkpjQm+bCrds41k9gLjQEiHE Vm3qGf43D60= =2BDs - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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