Allocation of Resources Without Limits or Throttling Affecting squid:4/squid package, versions <7:4.15-1.module+el8.5.0+11469+24c223d9


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
7.45% (94th percentile)

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  • Snyk IDSNYK-RHEL8-SQUID-4146809
  • published26 Jul 2021
  • disclosed10 May 2021

Introduced: 10 May 2021

CVE-2021-28651  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade RHEL:8 squid:4/squid to version 7:4.15-1.module+el8.5.0+11469+24c223d9 or higher.
This issue was patched in RHSA-2021:4292.

NVD Description

Note: Versions mentioned in the description apply only to the upstream squid:4/squid package and not the squid:4/squid package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1