cve/2017/CVE-2017-12837.md

CVE-2017-12837

Description

Heap-based buffer overflow in the S_regatom function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to cause a denial of service (out-of-bounds write) via a regular expression with a '\N{}' escape and the case-insensitive modifier.

POC

Reference

• https://www.oracle.com/security-alerts/cpujul2020.html

Github

• https://github.com/yfoelling/yair