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CVE-2007-4783

Date: September 10, 2007

The iconv_substr function in PHP 5.2.4 and earlier allows context-dependent attackers to cause (1) a denial of service (application crash) via a long string in the charset parameter, probably also requiring a long string in the str parameter; or (2) a denial of service (temporary application hang) via a long string in the str parameter. NOTE: this might not be a vulnerability in most web server environments that support multiple threads, unless these issues can be demonstrated for code execution.

Severity Score

Related Resources (12)

http://securityreason.com/securityalert/3115
http://www.securityfocus.com/archive/1/478637/100/0/threaded
http://www.securityfocus.com/archive/1/491693/100/0/threaded
http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml
http://secunia.com/advisories/27659
https://issues.rpath.com/browse/RPL-1943
https://nvd.nist.gov/vuln/detail/CVE-2007-4783
http://secunia.com/advisories/30040
http://secunia.com/advisories/27102
http://osvdb.org/38917
http://wiki.rpath.com/wiki/Advisories:rPSA-2007-0242
https://www.mend.io/vulnerability-database/CVE-2007-4783

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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