Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title MCrypt: User-assisted execution of arbitrary code
Informations
Name GLSA-201405-19 First vendor Publication 2014-05-18
Vendor Gentoo Last vendor Modification 2014-05-18
Severity (Vendor) Normal Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

Multiple vulnerabilities have been found in MCrypt, allowing attackers to execute arbitrary code or cause Denial of Service.

Background

MCrypt is a replacement of the old unix crypt(1) utility.

Description

Multiple vulnerabilities have been discovered in MCrypt:

* A boundary error in MCrypt could cause a stack-based buffer overflow (CVE-2012-4409).
* MCrypt contains multiple format string errors (CVE-2012-4426).
* MCrypt does not properly handle long file names, which could cause a stack-based buffer overflow (CVE-2012-4527).

Impact

A remote attacker could entice a user to open a specially crafted file using MCrypt, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All MCrypt users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-crypt/mcrypt-2.6.8-r2"

References

[ 1 ] CVE-2012-4409
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4409
[ 2 ] CVE-2012-4426
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4426
[ 3 ] CVE-2012-4527
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4527

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201405-19.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-201405-19.xml

CWE : Common Weakness Enumeration

% Id Name
67 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer
33 % CWE-134 Uncontrolled Format String (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 4

ExploitDB Exploits

id Description
2012-11-26 mcrypt <= 2.5.8 Stack Based Overflow

OpenVAS Exploits

Date Description
2012-11-09 Name : Fedora Update for mcrypt FEDORA-2012-17290
File : nvt/gb_fedora_2012_17290_mcrypt_fc17.nasl
2012-11-09 Name : Fedora Update for mcrypt FEDORA-2012-17318
File : nvt/gb_fedora_2012_17318_mcrypt_fc16.nasl
2012-09-27 Name : Fedora Update for mcrypt FEDORA-2012-13657
File : nvt/gb_fedora_2012_13657_mcrypt_fc17.nasl
2012-09-22 Name : Fedora Update for mcrypt FEDORA-2012-13656
File : nvt/gb_fedora_2012_13656_mcrypt_fc16.nasl

Nessus® Vulnerability Scanner

Date Description
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2012-713.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2012-758.nasl - Type : ACT_GATHER_INFO
2014-05-19 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201405-19.nasl - Type : ACT_GATHER_INFO
2012-11-08 Name : The remote Fedora host is missing a security update.
File : fedora_2012-17290.nasl - Type : ACT_GATHER_INFO
2012-11-08 Name : The remote Fedora host is missing a security update.
File : fedora_2012-17318.nasl - Type : ACT_GATHER_INFO
2012-11-08 Name : The remote Fedora host is missing a security update.
File : fedora_2012-17339.nasl - Type : ACT_GATHER_INFO
2012-09-27 Name : The remote Fedora host is missing a security update.
File : fedora_2012-13657.nasl - Type : ACT_GATHER_INFO
2012-09-19 Name : The remote Fedora host is missing a security update.
File : fedora_2012-13656.nasl - Type : ACT_GATHER_INFO
2012-09-18 Name : The remote Fedora host is missing a security update.
File : fedora_2012-13599.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2014-05-20 13:23:31
  • Multiple Updates
2014-05-18 17:20:03
  • First insertion