CVE-2019-12523 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
0.93% (84th percentile)

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  • Snyk IDSNYK-ORACLE8-SQUID-2574573
  • published10 Apr 2022
  • disclosed26 Nov 2019

Introduced: 26 Nov 2019

CVE-2019-12523  (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 before 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.

CVSS Scores

version 3.1