Medium severity · published Jan 14, 2020
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…
5.5
CVSS
1.6%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
PHP · PHP
5.4.0 before 5.4.41; 5.5.0 before 5.5.26; 5.6.0 before 5.6.9 · source: NVD
MA
Mariadb · Mariadb
10.0.0 before 10.0.18 · source: NVD
OP
Opensuse · Opensuse
13.1; 13.2 · source: NVD
PC
Pcre · Pcre
before 8.37 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-2326
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-2326
Mailing List
http://lists.opensuse.org/opensuse-updates/2015-05/msg00014.html
Exploit
https://bugs.exim.org/show_bug.cgi?id=1592
Third Party Advisory
https://fortiguard.com/zeroday/FG-VD-15-016
Release Notes
https://www.pcre.org/original/changelog.txt
More from PHP
9.8
CVE-2026-109618
RCE via OOM corruption
9.8
CVE-2024-4577
Argument Injection in PHP-CGI
9.8
CVE-2019-11043
Underflow in PHP-FPM can lead to RCE
9.8
CVE-2016-10033
The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra parameters to the mail command and consequently execute…
9.8
CVE-2012-1823
PHP-CGI Query String Parameter Vulnerability