Vulnerability Monitor

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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 a recursive back reference, as demonstrated by "((?+1)(\1))/".

Published

2020-01-14T17:15:12.177

Last Modified

2024-11-21T02:27:13.307

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-125

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	pcre	pcre	< 8.37	Yes
Operating System	opensuse	opensuse	13.1	Yes
Operating System	opensuse	opensuse	13.2	Yes
Application	mariadb	mariadb	< 10.0.18	Yes
Application	php	php	< 5.4.41	Yes
Application	php	php	< 5.5.26	Yes
Application	php	php	< 5.6.9	Yes

References

http://lists.opensuse.org/opensuse-updates/2015-05/msg00014.html Mailing List, Third Party Advisory ([email protected])
https://bugs.exim.org/show_bug.cgi?id=1592 Exploit, Issue Tracking, Permissions Required, Third Party Advisory ([email protected])
https://fortiguard.com/zeroday/FG-VD-15-016 Third Party Advisory ([email protected])
https://www.pcre.org/original/changelog.txt Release Notes, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-updates/2015-05/msg00014.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.exim.org/show_bug.cgi?id=1592 Exploit, Issue Tracking, Permissions Required, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://fortiguard.com/zeroday/FG-VD-15-016 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.pcre.org/original/changelog.txt Release Notes, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)