QID 355211

Date Published: 2023-05-29

QID 355211: Amazon Linux Security Advisory for Open Secure Sockets Layer (OpenSSL) : ALAS2023-2023-095

If an x.509 certificate contains a malformed policy constraint and policy processing is enabled, then a write lock will be taken twice recursively.
On some operating systems (most widely: windows) this results in a denial of service when the affected process hangs.
Policy processing being enabled on a publicly facing server is not considered to be a common setup.
Policy processing is enabled by passing the `-policy' argument to the command line utilities or by calling either `x509_verify_param_add0_policy()' or `x509_verify_param_set1_policies()' functions. (
( CVE-2022-3996)



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 - 5.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2023-2023-095 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 355211

    CVE-2022-3996 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2023-2023-095 amazon linux 2023 URL Logo alas.aws.amazon.com/AL2023/ALAS-2023-095.html
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