CVE-2015-2326
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…
Does this matter?
Lower severity and a low EPSS score (1.59%). Track it; it rarely justifies an emergency change on its own.
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))/".
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.59% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- pcre/pcre · opensuse/opensuse · mariadb/mariadb · php/php
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.