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Alerts This Week
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Gentoo: GLSA-201405-19 Normal: Threat of Code Execution in MCrypt

gentoo
Calendar Grey May 18, 2014
Scroller Gentoo
MCrypt weaknesses can lead to remote code execution or service disruption; immediate patching is essential. Further details are available in the Gentoo advisory.
Multiple vulnerabilities have been found in MCrypt, allowing attackers to execute arbitrary code or cause Denial of Service.

Summary

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).

Topics%20covered

Topics Covered

security advisory denial of service gentoo code execution normal mcrypt

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: https://security.gentoo.org/glsa/201405-19
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: Normal
Title: MCrypt: User-assisted execution of arbitrary code
Date: May 18, 2014
Bugs: #434112, #440778
ID: 201405-19

Topics%20covered

Topics Covered

security advisory denial of service gentoo code execution normal mcrypt

Synopsis

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

Background

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

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-crypt/mcrypt < 2.6.8-r2 >= 2.6.8-r2

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.