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Red Hat Enterprise Linux 8 RHSA-2021:4593 Moderate Annobin Unicode Attack

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Calendar Grey November 10, 2021
Scroller Redhat
A standard security patch for annobin in Red Hat Enterprise Linux mitigates the risk of possible trojan source vulnerabilities.
An update for annobin 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

Annobin provides a compiler plugin to annotate and tools to examine compiled binary files.
Security Fix(es):
* Developer environment: Unicode's bidirectional (BiDi) override characterscan cause trojan source attacks (CVE-2021-42574)
The following changes were introduced in annobin in order to facilitate detection of BiDi Unicode characters:
This update of annobin adds a new annocheck test to detect the presence of multibyte characters in symbol names.
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.

Topics%20covered

Topics Covered

security advisory moderate security update red hat enterprise linux unicode attack annobin compiler tool

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

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: annobin-9.72-1.el8_5.2.src.rpm
aarch64: annobin-9.72-1.el8_5.2.aarch64.rpm annobin-annocheck-9.72-1.el8_5.2.aarch64.rpm annobin-annocheck-debuginfo-9.72-1.el8_5.2.aarch64.rpm annobin-debuginfo-9.72-1.el8_5.2.aarch64.rpm annobin-debugsource-9.72-1.el8_5.2.aarch64.rpm
ppc64le: annobin-9.72-1.el8_5.2.ppc64le.rpm annobin-annocheck-9.72-1.el8_5.2.ppc64le.rpm annobin-annocheck-debuginfo-9.72-1.el8_5.2.ppc64le.rpm annobin-debuginfo-9.72-1.el8_5.2.ppc64le.rpm annobin-debugsource-9.72-1.el8_5.2.ppc64le.rpm
s390x: annobin-9.72-1.el8_5.2.s390x.rpm annobin-annocheck-9.72-1.el8_5.2.s390x.rpm annobin-annocheck-debuginfo-9.72-1.el8_5.2.s390x.rpm annobin-debuginfo-9.72-1.el8_5.2.s390x.rpm annobin-debugsource-9.72-1.el8_5.2.s390x.rpm
x86_64: annobin-9.72-1.el8_5.2.x86_64.rpm annobin-annocheck-9.72-1.el8_5.2.x86_64.rpm annobin-annocheck-debuginfo-9.72-1.el8_5.2.x86_64.rpm annobin-debuginfo-9.72-1.el8_5.2.x86_64.rpm annobin-debugsource-9.72-1.el8_5.2.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


Advisory ID: RHSA-2021:4593-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4593
Issue date: 2021-11-10

Topic

An update for annobin 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 moderate security update red hat enterprise linux unicode attack annobin compiler tool

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

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

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