QID 354260

Date Published: 2022-12-12

QID 354260: Amazon Linux Security Advisory for expat : ALAS-2022-1655

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared dtd in xml_externalentityparsercreate in out-of-memory situations. (
( CVE-2022-43680)



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: ALAS-2022-1655 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 354260

    Software Advisories
    Advisory ID Software Component Link
    ALAS-2022-1655 Amazon Linux URL Logo alas.aws.amazon.com/ALAS-2022-1655.html