github_osv/GHSA-9h36-4jf2-hx53
extlib does not properly restrict casts of string values
The extlib gem 0.9.15 and earlier for Ruby does not properly restrict casts of string values, which might allow remote attackers to conduct object-injection attacks and execute arbitrary code, or cause a denial of service (memory and CPU consumption) by leveraging Action Pack support for (1) YAML type conversion or (2) Symbol type conversion, a similar vulnerability to CVE-2013-0156.
gitlab/gem/extlib/CVE-2013-1802
Parameter parsing vulnerabilities
Similar to CVE-2013-0156 (Rails issue)