Use After Free Affecting squid-debugsource package, versions <7:6.6-1.amzn2023.0.3


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
4.78% (91st percentile)

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  • Snyk IDSNYK-AMZN2023-SQUIDDEBUGSOURCE-6516723
  • published3 Apr 2024
  • disclosed4 Dec 2023

Introduced: 4 Dec 2023

CVE-2023-49288  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 squid-debugsource to version 7:6.6-1.amzn2023.0.3 or higher.
This issue was patched in ALAS2023-2024-578.

NVD Description

Note: Versions mentioned in the description apply only to the upstream squid-debugsource package and not the squid-debugsource package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1