Out-of-bounds Write Affecting squid package, versions <7:4.11-3.module+el8.3.0+7819+eb7d4ef6


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
2.01% (90th percentile)

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  • Snyk IDSNYK-ORACLE8-SQUID-2574534
  • published10 Apr 2022
  • disclosed26 Nov 2019

Introduced: 26 Nov 2019

CVE-2019-18676  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Oracle:8 squid to version 7:4.11-3.module+el8.3.0+7819+eb7d4ef6 or higher.
This issue was patched in ELSA-2020-4743.

NVD Description

Note: Versions mentioned in the description apply only to the upstream squid package and not the squid package as distributed by Oracle. See How to fix? for Oracle:8 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