Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested regular expression quantifiers have an integer overflow.
https://github.com/Perl/perl5/compare/v5.30.2...v5.30.3
https://github.com/perl/perl5/commit/897d1f7fd515b828e4b198d8b8bef76c6faf03ed
https://github.com/Perl/perl5/blob/blead/pod/perl5303delta.pod
https://security.netapp.com/advisory/ntap-20200611-0001/
https://security.gentoo.org/glsa/202006-03
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00044.html
https://www.oracle.com/security-alerts/cpuoct2020.html
https://www.oracle.com/security-alerts/cpujan2021.html
https://www.oracle.com/security-alerts/cpuApr2021.html
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.oracle.com/security-alerts/cpuoct2021.html
Source: MITRE
Published: 2020-06-05
Updated: 2022-05-12
Type: CWE-787
Base Score: 6.4
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:P
Impact Score: 4.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 8.2
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Impact Score: 4.2
Exploitability Score: 3.9
Severity: HIGH