CVE-2015-2325

Description

The compile_branch function in PCRE before 8.37 allows context-dependent attackers to compile incorrect code, cause a denial of service (out-of-bounds heap read and crash), or possibly have other unspecified impact via a regular expression with a group containing a forward reference repeated a large number of times within a repeated outer group that has a zero minimum quantifier.

CVSS Metrics

• v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
• v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.47%• Percentile: 65%

Techniques & Countermeasures

• CWE-125•Out-of-bounds Read

  The product reads data past the end, or before the beginning, of the intended buffer.

• CWE-787•Out-of-bounds Write

  The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

• mariadb•mariadb

  < 10.0.18

• opensuse•opensuse

  13.1 | 13.2

• pcre•pcre

  < 8.37

• Unknown•PHP

  ≥ 5.4.0, < 5.4.41 | ≥ 5.5.0, < 5.5.26 | ≥ 5.6.0, < 5.6.9

References (4)

• http://lists.opensuse.org/opensuse-updates/2015-05/msg00014.html
• https://bugs.exim.org/show_bug.cgi?id=1591
• https://www.pcre.org/original/changelog.txt
• https://fortiguard.com/zeroday/FG-VD-15-015