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Red Hat Enterprise 8: RHSA-2021-4364 Moderate Binutils Buffer Overflow

red hat
Calendar Grey November 9, 2021
Dist Redhat Esm H88
Moderate security update for Red Hat's binutils package tackling critical concerns like memory use and buffer overflows.
An update for binutils is now available for Red Hat Enterprise Linux 8

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

Summary

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.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow security fix moderate severity memory issue binutils

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://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.5_release_notes/index

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

Read the Full Advisory


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

Topic

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 impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow security fix moderate severity memory issue binutils

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

Bugs Fixed

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).

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