What’s Vulnerable › Vulnerabilities

CVE-2015-2305

• Severity: medium (CVSS 6.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 8.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2015-03-30 · updated 2026-06-17
• Weakness: CWE-190

Description

Integer overflow in the regcomp implementation in the Henry Spencer BSD regex library (aka rxspencer) alpha3.8.g5 on 32-bit platforms, as used in NetBSD through 6.1.5 and other products, might allow context-dependent attackers to execute arbitrary code via a large regular expression that leads to a heap-based buffer overflow.

Affected products

• Canonical Ubuntu Linux: 10.04, 12.04, 14.04, 14.10, 15.04
• Debian Linux: 7.0, 8.0
• Opensuse: 13.1, 13.2
• PHP: from 5.4.0 before 5.4.39; from 5.5.0 before 5.5.23; from 5.6.0 before 5.6.7 — fixed in 5.4.39, 5.5.23, 5.6.7
• Rxspencer Project Rxspencer: 3.8.g5

How to fix

Upgrade to a fixed version: PHP 5.4.39, 5.5.23, 5.6.7. Check the vendor advisory for mitigations.

References

• http://blog.clamav.net/2015/04/clamav-0987-has-been-released.html
• http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
• http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00005.html
• http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00026.html
• http://lists.opensuse.org/opensuse-updates/2015-04/msg00002.html
• http://lists.opensuse.org/opensuse-updates/2015-05/msg00024.html
• http://marc.info/?l=bugtraq&m=143403519711434&w=2
• http://openwall.com/lists/oss-security/2015/02/07/14
• http://openwall.com/lists/oss-security/2015/03/11/8
• http://php.net/ChangeLog-5.php
• http://rhn.redhat.com/errata/RHSA-2015-1053.html
• http://rhn.redhat.com/errata/RHSA-2015-1066.html

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