National Vulnerability Database (NVD) National Vulnerability Database (CVE-2011-4357)

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Vulnerability Summary for CVE-2011-4357

Original release date:12/10/2011

Last revised:12/12/2011

Source: US-CERT/NIST

Overview

Format string vulnerability in the p_cgi_error function in python/neo_cgi.c in the Python CGI Kit (neo_cgi) module for Clearsilver 0.10.5 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers that are not properly handled when creating CGI error messages using the cgi_error API function.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:7.5 (HIGH) (AV:N/AC:L/Au:N/C:P/I:P/A:P) (legend)

Impact Subscore: 6.4

Exploitability Subscore: 10.0

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: Low

Authentication: Not required to exploit

Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

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External Source: XF

Name: clearsilver-neocgi-format-string(71599)

Hyperlink:http://xforce.iss.net/xforce/xfdb/71599

External Source: MLIST

Name: [oss-security] 20111127 CVE Request -- ClearSilver (neo_cgi) -- Format string flaw by processing CGI error messages in Python module

Hyperlink:http://www.openwall.com/lists/oss-security/2011/11/27/1

External Source: DEBIAN

Name: DSA-2355

Hyperlink:http://www.debian.org/security/2011/dsa-2355

External Source: CONFIRM

Name: http://tech.groups.yahoo.com/group/ClearSilver/message/1422

Hyperlink:http://tech.groups.yahoo.com/group/ClearSilver/message/1422