Vulnerability CVE-2007-4840
Published: 2007-09-12   Modified: 2012-02-12

Description:
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.

See advisories in our WLB2 database:
Topic
Author
Date
Low
PHP <= 5.2.4 multiple Iconv functions denial of service
laurent gaffie
13.09.2007

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
PHP -> PHP 

 References:
http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
http://securityreason.com/securityalert/3122
http://wiki.rpath.com/wiki/Advisories:rPSA-2007-0242
http://www.gentoo.org/security/en/glsa/glsa-200710-02.xml
http://www.securityfocus.com/archive/1/478730/100/0/threaded
http://www.securityfocus.com/archive/1/491693/100/0/threaded
https://issues.rpath.com/browse/RPL-1943
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