QID 355160

Date Published: 2023-05-29

QID 355160: Amazon Linux Security Advisory for gcc : ALAS2023-2023-030

A flaw was found in the way unicode standards are implemented in the context of development environments, which have specialized requirements for rendering text.
An attacker could exploit this to deceive a human reviewer by creating a malicious patch containing well placed bidi characters.
The special handling and rendering of those characters can be then used in an attempt to hide unexpected and potentially dangerous behaviour from the reviewer. (
( CVE-2021-42574)



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as Critical - 8.3 severity.
  • CVSS V2 rated as Medium - 5.1 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2023-2023-030 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 355160

    CVE-2021-42574 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2023-2023-030 amazon linux 2023 URL Logo alas.aws.amazon.com/AL2023/ALAS-2023-030.html
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