Description
An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buffer overflow with user controlled data.
Remediation
References
Related Vulnerabilities
Moodle Exposure of Resource to Wrong Sphere Vulnerability (CVE-2017-7490)
Moodle Permissions, Privileges, and Access Controls Vulnerability (CVE-2008-6125)
Drupal Permissions, Privileges, and Access Controls Vulnerability (CVE-2007-5597)
Artifactory Missing Authorization Vulnerability (CVE-2019-10322)