Description
The pcre_compile2 function in PCRE before 8.37 allows context-dependent attackers to compile incorrect code and cause a denial of service (out-of-bounds read) via regular expression with a group containing both a forward referencing subroutine call and a recursive back reference, as demonstrated by "((?+1)(\1))/".
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://lists.opensuse.org/opensuse-updates/2015-05/msg00014.htmlMailing List, Third Party Advisory
- https://bugs.exim.org/show_bug.cgi?id=1592Exploit, Issue Tracking, Permissions Required, Third Party Advisory
- https://fortiguard.com/zeroday/FG-VD-15-016Third Party Advisory
- https://www.pcre.org/original/changelog.txtRelease Notes, Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2015-05/msg00014.htmlMailing List, Third Party Advisory
- https://bugs.exim.org/show_bug.cgi?id=1592Exploit, Issue Tracking, Permissions Required, Third Party Advisory
- https://fortiguard.com/zeroday/FG-VD-15-016Third Party Advisory
- https://www.pcre.org/original/changelog.txtRelease Notes, Third Party Advisory
Timeline
- Published
- Jan 14, 2020
- Last modified
- Jun 17, 2026
- NVD status
- Modified