Incorrect Calculation of Buffer Size The advisory has been revoked - it doesn't affect any version of package squid  (opens in a new tab)


Threat Intelligence

EPSS
9.18% (95th percentile)

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  • Snyk IDSNYK-RHEL8-SQUID-1459387
  • published26 Jul 2021
  • disclosed5 Nov 2019

Introduced: 5 Nov 2019

CVE-2019-18676  (opens in a new tab)
CWE-131  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream squid package and not the squid package as distributed by RHEL.

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.