Out-of-bounds Write Affecting squid package, versions <7:4.4-8.module+el8.2.0+7611+d512f060.1


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
12.78% (96th percentile)

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  • Snyk IDSNYK-ORACLE8-SQUID-2558455
  • published10 Apr 2022
  • disclosed11 Jul 2019

Introduced: 11 Jul 2019

CVE-2019-12525  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Oracle:8 squid to version 7:4.4-8.module+el8.2.0+7611+d512f060.1 or higher.
This issue was patched in ELSA-2020-2041.

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 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token's value starts with a quote and ends with one. If so, it performs a memcpy of its length minus 2. Squid never checks whether the value is just a single quote (which would satisfy its requirements), leading to a memcpy of its length minus 1.

CVSS Scores

version 3.1