Vulnerability Details : CVE-2007-4840
PHP 5.2.4 and earlier allows context-dependent attackers to cause a denial of service (application crash) via (1) a long string in the out_charset parameter to the iconv function; or a long string in the charset parameter to the (2) iconv_mime_decode_headers, (3) iconv_mime_decode, or (4) iconv_strlen function. 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.
Vulnerability category: Input validationDenial of service
Threat overview for CVE-2007-4840
Top countries where our scanners detected CVE-2007-4840
Top open port discovered on systems with this issue
80
IPs affected by CVE-2007-4840 7,352
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2007-4840
Probability of exploitation activity in the next 30 days: 3.19%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 91 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2007-4840
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
CWE ids for CVE-2007-4840
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The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
Vendor statements for CVE-2007-4840
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Red Hat 2007-09-13We do not consider this to be a security issue. For more information please see http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169857#c1 and http://www.php.net/security-note.php
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http://securityreason.com/securityalert/3122
- http://wiki.rpath.com/wiki/Advisories:rPSA-2007-0242
- http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
- http://www.securityfocus.com/archive/1/491693/100/0/threaded
- http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml
- https://issues.rpath.com/browse/RPL-1943
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http://www.securityfocus.com/archive/1/478730/100/0/threaded
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*