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Gentoo: 201605-05 Standard: Linux-PAM Denial Of Service Alert

gentoo
Calendar Grey May 31, 2016
Dist Gentoo Esm H88
Gentoo GLSA-202109-08 identifies several security flaws in Linux-PAM that permit remote attackers to circumvent authentication and potentially trigger denial-of-service conditions.
Multiple vulnerabilities have been found in Linux-PAM, allowing remote attackers to bypass the auth process and cause Denial of Service.

Summary

Multiple vulnerabilities have been discovered in Linux-PAM. Please review the CVE identifiers referenced below for details.

Topics%20covered

Topics Covered

security advisory denial of service gentoo normal linux-pam

Resolution

All Linux-PAM users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-libs/pam-1.2.1"

References

[ 1 ] CVE-2013-7041 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-7041 [ 2 ] CVE-2014-2583 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-2583 [ 3 ] CVE-2015-3238 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-3238 [ 4 ] CVE-2015-3238 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-3238

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201605-05
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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: Linux-PAM: Multiple vulnerabilities
Date: May 31, 2016
Bugs: #493432, #505604, #553302
ID: 201605-05

Topics%20covered

Topics Covered

security advisory denial of service gentoo normal linux-pam

Synopsis

Multiple vulnerabilities have been found in Linux-PAM, allowing remote attackers to bypass the auth process and cause Denial of Service.

Background

Linux-PAM (Pluggable Authentication Modules) is an architecture allowing the separation of the development of privilege granting software from the development of secure and appropriate authentication schemes.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-libs/pam < 1.2.1 >= 1.2.1

Impact

===== Remote attackers could cause Denial of Service, conduct brute force attacks, and conduct username enumeration.

Workaround

There is no known workaround at this time.

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