Out-of-Bounds Affecting squid-sysvinit package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
1.09% (85th percentile)

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  • Snyk IDSNYK-CENTOS7-SQUIDSYSVINIT-1996691
  • published26 Jul 2021
  • disclosed11 Jul 2019

Introduced: 11 Jul 2019

CVE-2019-12529  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 squid-sysvinit.

NVD Description

Note: Versions mentioned in the description apply only to the upstream squid-sysvinit package and not the squid-sysvinit package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

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.

CVSS Scores

version 3.1