QID 355430

Date Published: 2023-06-14

QID 355430: Amazon Linux Security Advisory for squid : ALAS-2023-1766

Incorrect http request header comparison in squid http proxy 3.5.0.1 through 3.5.22, and 4.0.1 through 4.0.16 results in collapsed forwarding feature mistakenly identifying some private responses as being suitable for delivery to multiple clients. (
( CVE-2016-10003) an issue was discovered in squid before 4.10.
Due to incorrect input validation, the ntlm authentication credentials parser in ext_lm_group_acl may write to memory outside the credentials buffer.
On systems with memory access protections, this can result in the helper process being terminated unexpectedly.
This leads to the squid process also terminating and a denial of service for all clients using the proxy. (
( CVE-2020-8517)



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: ALAS-2023-1766 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 355430

    CVE-2016-10003 | CVE-2020-8517 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS-2023-1766 amazon linux URL Logo alas.aws.amazon.com/ALAS-2023-1766.html
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