CVE-2017-12883 (https://nvd.nist.gov/vuln/detail/CVE-2017-12883): Buffer overflow in the S_grok_bslash_N 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 disclose sensitive information or cause a denial of service (application crash) via a crafted regular expression with an invalid '\N{U+...}' escape. CVE-2017-12837 (https://nvd.nist.gov/vuln/detail/CVE-2017-12837): 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. Just a test.
Was just a test bug for testing GLSAmaker.