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OpenAdvisories
Medium ALAS2-2023-1950 7 CVEs

Moderate: squid security update (Amazon Linux 2)

Published Feb 17, 2023 · Updated Feb 22, 2023

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2022-41317: A flaw was found in squid. A trusted client can directly access the cache manager information, bypassing the manager ACL protection and resulting in information disclosure. CVE-2021-33620: Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent by the server. CVE-2021-31808: An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this. CVE-2021-31807: An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent. CVE-2021-31806: An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy) via HTTP Range request processing. CVE-2021-28652: An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege. CVE-2021-28651: An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption.

Fixed packages 4

ReleasePackageFixed in
Amazon Linux · 2 squid 7:3.5.20-17.amzn2.7.2
Amazon Linux · 2 squid-debuginfo 7:3.5.20-17.amzn2.7.2
Amazon Linux · 2 squid-migration-script 7:3.5.20-17.amzn2.7.2
Amazon Linux · 2 squid-sysvinit 7:3.5.20-17.amzn2.7.2

Vulnerabilities 7

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2021-28651.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2021-28652.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2021-31806.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2021-31807.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2021-31808.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2021-33620.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2022-41317.html