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Amazon Linux 2023: CVE-2023-49288: Important priority package update for squid

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Amazon Linux 2023: CVE-2023-49288: Important priority package update for squid

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
12/05/2023
Created
02/14/2025
Added
02/14/2025
Modified
02/14/2025

Description

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Affected versions of squid are subject to a a Use-After-Free bug which can lead to a Denial of Service attack via collapsed forwarding. All versions of Squid from 3.5 up to and including 5.9 configured with "collapsed_forwarding on" are vulnerable. Configurations with "collapsed_forwarding off" or without a "collapsed_forwarding" directive are not vulnerable. This bug is fixed by Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should remove all collapsed_forwarding lines from their squid.conf. A flaw was found in Squid. The use of the HTTP Collapsed Forwarding configuration may allow an attacker to perform a denial of service remotely.

Solution(s)

  • amazon-linux-2023-upgrade-squid
  • amazon-linux-2023-upgrade-squid-debuginfo
  • amazon-linux-2023-upgrade-squid-debugsource

References

  • https://attackerkb.com/topics/cve-2023-49288
  • CVE - 2023-49288
  • https://alas.aws.amazon.com/AL2023/ALAS-2024-578.html
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