Description
The (1) S_reghop3, (2) S_reghop4, and (3) S_reghopmaybe3 functions in regexec.c in Perl before 5.24.0 allow context-dependent attackers to cause a denial of service (infinite loop) via crafted utf-8 data, as demonstrated by "a\x80."
Remediation
References
Related Vulnerabilities
MediaWiki Insufficiently Protected Credentials Vulnerability (CVE-2020-29005)
WordPress Plugin Page Builder:PageLayer-Drag and Drop website builder Cross-Site Scripting (1.3.4)
Drupal Inclusion of Functionality from Untrusted Control Sphere Vulnerability (CVE-2017-6381)