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Gentoo: GLSA-202301-15 Normal: OpenSSH Vulnerability Exploit Risk

gentoo
Calendar Grey January 23, 2012
Dist Gentoo Esm H88
Several security flaws in MIT Kerberos 5 Applications might enable unauthorized code execution. Users are advised to upgrade promptly.
Multiple vulnerabilities have been found in MIT Kerberos 5 Applications, the most severe of which may allow execution of arbitrary code

Summary

Multiple vulnerabilities have been discovered in MIT Kerberos 5 Applications: * An error in the FTP daemon prevents it from dropping its initial effective group identifier (CVE-2011-1526). * A boundary error in the telnet daemon and client could cause a buffer overflow (CVE-2011-4862).

Topics%20covered

Topics Covered

security advisory Gentoo buffer overflow code execution MIT Kerberos

Resolution

All MIT Kerberos 5 Applications users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot -v ">=app-crypt/mit-krb5-appl-1.0.2-r1"

References

[ 1 ] CVE-2011-1526 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1526 [ 2 ] CVE-2011-4862 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4862

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201201-14
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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: MIT Kerberos 5 Applications: Multiple vulnerabilities
Date: January 23, 2012
Bugs: #374229, #396137
ID: 201201-14

Topics%20covered

Topics Covered

security advisory Gentoo buffer overflow code execution MIT Kerberos

Synopsis

Multiple vulnerabilities have been found in MIT Kerberos 5 Applications, the most severe of which may allow execution of arbitrary code.

Background

A suite of applications that implement the Kerberos 5 network protocol from MIT.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-crypt/mit-krb5-appl < 1.0.2-r1 >= 1.0.2-r1

Impact

===== An unauthenticated remote attacker may be able to execute arbitrary code with the privileges of the user running the telnet daemon or client. Furthermore, an authenticated remote attacker may be able to read or write files owned by the same group as the effective group of the FTP daemon.

Workaround

There is no known workaround at this time.

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