CVE-2006-1991

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Summary

CVECVE-2006-1991
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2006-04-24 23:02:00 UTC
Updated2025-04-03 01:03:51 UTC
DescriptionThe substr_compare function in string.c in PHP 5.1.2 allows context-dependent attackers to cause a denial of service (memory access violation) via an out-of-bounds offset argument.

Risk And Classification

Primary CVSS: v2.0 6.4 from [email protected]

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

EPSS: 0.036470000 probability, percentile 0.878740000 (date 2026-04-20)

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
Partial

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Php Php 5.1.2 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com Vendor Advisory
Advisories - Mandriva Linux af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
usn/usn-320-1 - Ubuntu: Linux for human beings af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
Mandriva update for php - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Patch, Vendor Advisory
Secunia - Advisories - Gentoo update for php af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
Security Announcement af854a3a-2127-422b-91ae-364da2661108 www.novell.com
Ubuntu update for PHP - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Gentoo Linux Documentation -- PHP: Multiple vulnerabilities af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
Secunia - Advisories - SUSE update for php4 / php5 af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
SecurityTracker.com Archives - PHP wordwrap(), array_fill(), and substr_compare() Bugs Let Remote Users Deny Service or Execute Arbitrary Code af854a3a-2127-422b-91ae-364da2661108 securitytracker.com
INFIGO IS Security Advisory #INFIGO-2006-04-02 | Infigo af854a3a-2127-422b-91ae-364da2661108 www.infigo.hr Exploit
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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