Improper Input Validation Affecting squid-debuginfo package, versions <7:3.5.20-17.amzn2.7.5


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
1.31% (86th percentile)

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  • Snyk IDSNYK-AMZN2-SQUIDDEBUGINFO-5663487
  • published1 Jun 2023
  • disclosed26 Nov 2019

Introduced: 26 Nov 2019

CVE-2019-18676  (opens in a new tab)
CWE-20  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 squid-debuginfo to version 7:3.5.20-17.amzn2.7.5 or higher.
This issue was patched in ALAS2-2023-2065.

NVD Description

Note: Versions mentioned in the description apply only to the upstream squid-debuginfo package and not the squid-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

An issue was discovered in Squid 3.x and 4.x through 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security checks; any remote client that can reach the proxy port can trivially perform the attack via a crafted URI scheme.

CVSS Scores

version 3.1