QID 354104

Date Published: 2022-11-10

QID 354104: Amazon Linux Security Advisory for glibc : ALAS2-2022-1869

In the gnu c library (aka glibc or libc6) before 2.28, parse_reg_exp in posix/regcomp.c misparses alternatives, which allows attackers to cause a denial of service (assertion failure and application exit) or trigger an incorrect result by attempting a regular-expression match. (
( CVE-2009-5155) the pop_fail_stack function in the gnu c library (aka glibc or libc6) allows context-dependent attackers to cause a denial of service (assertion failure and application crash) via vectors related to extended regular expression processing. (
( CVE-2015-8985)



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 High - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2022-1869 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 354104

    CVE-2015-8985 | CVE-2009-5155 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2022-1869 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2022-1869.html
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