National Vulnerability Database (NVD) National Vulnerability Database (CVE-2012-4409)

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Last updated: Tue Jun 18 18:46:52 EDT 2013

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Vulnerability Summary for CVE-2012-4409

Original release date:11/21/2012

Last revised:04/02/2013

Source: US-CERT/NIST

Overview

Stack-based buffer overflow in the check_file_head function in extra.c in mcrypt 2.6.8 and earlier allows user-assisted remote attackers to execute arbitrary code via an encrypted file with a crafted header containing long salt data that is not properly handled during decryption.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:6.8 (MEDIUM) (AV:N/AC:M/Au:N/C:P/I:P/A:P) (legend)

Impact Subscore: 6.4

Exploitability Subscore: 8.6

CVSS Version 2 Metrics:

Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism

Access Complexity: Medium

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: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=855029

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=855029

External Source: SECTRACK

Name: 1027532

Hyperlink:http://www.securitytracker.com/id?1027532

External Source: MLIST

Name: [oss-security] 20120906 Re: CVE request - mcrypt buffer overflow flaw

Hyperlink:http://www.openwall.com/lists/oss-security/2012/09/06/4

External Source: SECUNIA

Name: 51010

Hyperlink:http://secunia.com/advisories/51010