RHSA-2021:4598 — Security Advisory
Red Hat Security Advisory: annobin security update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · November 10, 2021
Updated · August 7, 2026
Topic
An update for annobin is now available for Red Hat Enterprise Linux 8.4 Extended Update Support.
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
Annobin provides a compiler plugin to annotate and tools to examine compiled binary files.
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 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.