QID 354136

Date Published: 2022-12-08

QID 354136: Amazon Linux Security Advisory for pcs : ALAS2-2022-1895

A denial of service flaw was found in ruby-rack.
An attacker crafting multipart post requests can cause rack's multipart parser to take much longer than expected, leading to a denial of service. (
( CVE-2022-30122) a flaw was found in ruby gem-rack.
This flaw allows a malicious actor to craft requests that can cause shell escape sequences to be written to the terminal via rack's `lint` middleware and `commonlogger` middleware.
This issue can leverage these escape sequences to execute commands in the victim's terminal. (
( CVE-2022-30123)



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 - 10 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2022-1895 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 354136

    CVE-2022-30123 | CVE-2022-30122 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2022-1895 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2022-1895.html
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