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Red Hat Product Errata RHSA-2021:4033 - Security Advisory
Issued:
2021-11-01
Updated:
2021-11-01

RHSA-2021:4033 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Moderate: binutils security update

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

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.

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.

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

Affected Products

  • Red Hat Enterprise Linux Server 7 x86_64
  • Red Hat Enterprise Linux Workstation 7 x86_64
  • Red Hat Enterprise Linux Desktop 7 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 7 s390x
  • Red Hat Enterprise Linux for Power, big endian 7 ppc64
  • Red Hat Enterprise Linux for Scientific Computing 7 x86_64
  • Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

  • BZ - 2005819 - CVE-2021-42574 Developer environment: Unicode's bidirectional (BiDi) override characters can cause trojan source attacks

CVEs

  • CVE-2021-42574

References

  • https://access.redhat.com/security/updates/classification/#moderate
  • https://access.redhat.com/security/vulnerabilities/RHSB-2021-007
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server 7

SRPM
binutils-2.27-44.base.el7_9.1.src.rpm SHA-256: 0a2b73e9da56f004505fd6b5816875bacff7471888899491201b0579ad84d756
x86_64
binutils-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: b772337daa20860a2363926b32f9122aac587b6dbae0a3a3a712e79c0ac0a075
binutils-debuginfo-2.27-44.base.el7_9.1.i686.rpm SHA-256: 76e73b9815571d25e2ad71d7fd5ed961a558289e22b3d5d2f4c2f672a6f8d7e6
binutils-debuginfo-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: 8ab48f0943a449245ba18a53f2a09b0ecc30c0ec9a8640793e3e2fef18ec1258
binutils-devel-2.27-44.base.el7_9.1.i686.rpm SHA-256: ee29d3b5a663a52aec5240cb9949cb107f7b970e0ba795340b90093cc1fbaa8a
binutils-devel-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: 053bd26fb002b016a5147e0dc529e795486a29032623907f60624719bac3aad6

Red Hat Enterprise Linux Workstation 7

SRPM
binutils-2.27-44.base.el7_9.1.src.rpm SHA-256: 0a2b73e9da56f004505fd6b5816875bacff7471888899491201b0579ad84d756
x86_64
binutils-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: b772337daa20860a2363926b32f9122aac587b6dbae0a3a3a712e79c0ac0a075
binutils-debuginfo-2.27-44.base.el7_9.1.i686.rpm SHA-256: 76e73b9815571d25e2ad71d7fd5ed961a558289e22b3d5d2f4c2f672a6f8d7e6
binutils-debuginfo-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: 8ab48f0943a449245ba18a53f2a09b0ecc30c0ec9a8640793e3e2fef18ec1258
binutils-devel-2.27-44.base.el7_9.1.i686.rpm SHA-256: ee29d3b5a663a52aec5240cb9949cb107f7b970e0ba795340b90093cc1fbaa8a
binutils-devel-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: 053bd26fb002b016a5147e0dc529e795486a29032623907f60624719bac3aad6

Red Hat Enterprise Linux Desktop 7

SRPM
binutils-2.27-44.base.el7_9.1.src.rpm SHA-256: 0a2b73e9da56f004505fd6b5816875bacff7471888899491201b0579ad84d756
x86_64
binutils-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: b772337daa20860a2363926b32f9122aac587b6dbae0a3a3a712e79c0ac0a075
binutils-debuginfo-2.27-44.base.el7_9.1.i686.rpm SHA-256: 76e73b9815571d25e2ad71d7fd5ed961a558289e22b3d5d2f4c2f672a6f8d7e6
binutils-debuginfo-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: 8ab48f0943a449245ba18a53f2a09b0ecc30c0ec9a8640793e3e2fef18ec1258
binutils-debuginfo-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: 8ab48f0943a449245ba18a53f2a09b0ecc30c0ec9a8640793e3e2fef18ec1258
binutils-devel-2.27-44.base.el7_9.1.i686.rpm SHA-256: ee29d3b5a663a52aec5240cb9949cb107f7b970e0ba795340b90093cc1fbaa8a
binutils-devel-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: 053bd26fb002b016a5147e0dc529e795486a29032623907f60624719bac3aad6

Red Hat Enterprise Linux for IBM z Systems 7

SRPM
binutils-2.27-44.base.el7_9.1.src.rpm SHA-256: 0a2b73e9da56f004505fd6b5816875bacff7471888899491201b0579ad84d756
s390x
binutils-2.27-44.base.el7_9.1.s390x.rpm SHA-256: a0c8500c200e410896a83fd32b0ce1c7fd010161bfcbbee6e7a217158802fffa
binutils-debuginfo-2.27-44.base.el7_9.1.s390.rpm SHA-256: 0ec5602d0bb2c5452d31300bf65883615582400445ceff4635aac4b43853f1c6
binutils-debuginfo-2.27-44.base.el7_9.1.s390x.rpm SHA-256: 008bb686d03d24e5c23485fbe15fbeaafbb5ff2883ee9205c82ca3427e865314
binutils-devel-2.27-44.base.el7_9.1.s390.rpm SHA-256: 0c11286f42ec37139378c2a898ea21cdfc00bed273db4e2cb30254118d57b0ac
binutils-devel-2.27-44.base.el7_9.1.s390x.rpm SHA-256: 7478d9e3fe87efaf719408833a1978c231af07048945e983e38bbb4270859ed1

Red Hat Enterprise Linux for Power, big endian 7

SRPM
binutils-2.27-44.base.el7_9.1.src.rpm SHA-256: 0a2b73e9da56f004505fd6b5816875bacff7471888899491201b0579ad84d756
ppc64
binutils-2.27-44.base.el7_9.1.ppc64.rpm SHA-256: 0e5dad7f9fa35f2828200a2ee24006fe245da5ea9b8f3aaa6300474128df61c8
binutils-debuginfo-2.27-44.base.el7_9.1.ppc.rpm SHA-256: f03eed8c7efa5ed980fecec429b161d9cf78569b77beb34fb2d49cf9be551b53
binutils-debuginfo-2.27-44.base.el7_9.1.ppc64.rpm SHA-256: e2988fc0152677e257423b70d42a29f9c3980b60638cd4ae7883fd78df3e73c9
binutils-devel-2.27-44.base.el7_9.1.ppc.rpm SHA-256: f78aa704171b9c35fa04c3af4650e1a73cadc4d7bce264215ef7207bc8b039d9
binutils-devel-2.27-44.base.el7_9.1.ppc64.rpm SHA-256: 905a103900d8e30536166ee1de8b558ea1835848582cbe4ec1188a29523613fe

Red Hat Enterprise Linux for Scientific Computing 7

SRPM
binutils-2.27-44.base.el7_9.1.src.rpm SHA-256: 0a2b73e9da56f004505fd6b5816875bacff7471888899491201b0579ad84d756
x86_64
binutils-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: b772337daa20860a2363926b32f9122aac587b6dbae0a3a3a712e79c0ac0a075
binutils-debuginfo-2.27-44.base.el7_9.1.i686.rpm SHA-256: 76e73b9815571d25e2ad71d7fd5ed961a558289e22b3d5d2f4c2f672a6f8d7e6
binutils-debuginfo-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: 8ab48f0943a449245ba18a53f2a09b0ecc30c0ec9a8640793e3e2fef18ec1258
binutils-debuginfo-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: 8ab48f0943a449245ba18a53f2a09b0ecc30c0ec9a8640793e3e2fef18ec1258
binutils-devel-2.27-44.base.el7_9.1.i686.rpm SHA-256: ee29d3b5a663a52aec5240cb9949cb107f7b970e0ba795340b90093cc1fbaa8a
binutils-devel-2.27-44.base.el7_9.1.x86_64.rpm SHA-256: 053bd26fb002b016a5147e0dc529e795486a29032623907f60624719bac3aad6

Red Hat Enterprise Linux for Power, little endian 7

SRPM
binutils-2.27-44.base.el7_9.1.src.rpm SHA-256: 0a2b73e9da56f004505fd6b5816875bacff7471888899491201b0579ad84d756
ppc64le
binutils-2.27-44.base.el7_9.1.ppc64le.rpm SHA-256: 8e60d8218d597b5d8b3cc91c59e1e666a48be22019c8bb8bc3f56293f1f6b409
binutils-debuginfo-2.27-44.base.el7_9.1.ppc64le.rpm SHA-256: 09b3474e801bfe0cdc00143a90781cb4d9406c48eccd4330053e65b80910fda9
binutils-devel-2.27-44.base.el7_9.1.ppc64le.rpm SHA-256: a2701275fb3a25bf57c4988914810164f5b6f1c6f2ec1d58d9d8cb0463dd8217

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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