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Out-of-Bounds The advisory has been revoked - it doesn't affect any version of package squid  (opens in a new tab)

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  • Snyk IDSNYK-RHEL8-SQUID-1459316
  • published26 Jul 2021
  • disclosed11 Jul 2019
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Introduced: 11 Jul 2019

CVE-2019-12529  (opens in a new tab)
CWE-119  (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 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages.

References