QID 356521

Date Published: 2023-11-08

QID 356521: Amazon Linux Security Advisory for amazon-ssm-agent : ALAS2023-2023-388

The x/crypto/ssh package before 0.0.0-20211202192323-5770296d904e of golang.org/x/crypto allows an attacker to panic an ssh server. (
( CVE-2021-43565) http2/hpack: avoid quadratic complexity in hpack decoding (cve-2022-41723) templates did not properly consider backticks (`) as javascript string delimiters, and as such did not escape them as expected.
Backticks are used, since es6, for js template literals.
If a template contained a go template action within a javascript template literal, the contents of the action could be used to terminate the literal, injecting arbitrary javascript code into the go template. (
( CVE-2023-24538)



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 - 9.8 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2023-2023-388 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 356521

    CVE-2023-24538 | CVE-2022-41723 | CVE-2021-43565 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2023-2023-388 amazon linux 2023 URL Logo alas.aws.amazon.com/AL2023/ALAS-2023-388.html
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