The following updates for Gentoo Linux has been released: [ GLSA 201202-06 ] Asterisk: Denial of Service, [ GLSA 201202-05 ] Heimdal: Arbitrary code execution, [ GLSA 201202-04 ] PowerDNS: Denial of Service, and [ GLSA 201202-03 ] MaraDNS: Denial of Service
[ GLSA 201202-06 ] Asterisk: Denial of Service
[ GLSA 201202-06 ] Asterisk: Denial of Service
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -[ GLSA 201202-05 ] Heimdal: Arbitrary code execution
Gentoo Linux Security Advisory GLSA 201202-06
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http://security.gentoo.org/
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Severity: Normal
Title: Asterisk: Denial of Service
Date: February 22, 2012
Bugs: #399507
ID: 201202-06
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Synopsis
========
A vulnerability in Asterisk could allow a remote attacker to cause a
Denial of Service condition.
Background
==========
Asterisk is an open source telephony engine and toolkit.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/asterisk < 1.8.8.2 >= 1.8.8.2
Description
===========
A vulnerability has been found in Asterisk's handling of certain
encrypted streams where the res_srtp module has been loaded but video
support has not been enabled.
Impact
======
A remote attacker could send a specially crafted SDP message to the
Asterisk daemon, possibly resulting in a Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Asterisk users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.8.2"
References
==========
[ 1 ] CVE-2012-0885
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0885
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201202-06.xml
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.
License
=======
Copyright 2012 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -[ GLSA 201202-04 ] PowerDNS: Denial of Service
Gentoo Linux Security Advisory GLSA 201202-05
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http://security.gentoo.org/
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Severity: High
Title: Heimdal: Arbitrary code execution
Date: February 22, 2012
Bugs: #396105
ID: 201202-05
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Synopsis
========
A boundary error in Heimdal could result in execution of arbitrary
code.
Background
==========
Heimdal is a free implementation of Kerberos 5.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-crypt/heimdal < 1.5.1-r1 >= 1.5.1-r1
Description
===========
A boundary error in the "encrypt_keyid()" function in
appl/telnet/libtelnet/encrypt.c of the telnet daemon and client could
cause a buffer overflow.
Impact
======
An unauthenticated remote attacker may be able to execute arbitrary
code with the privileges of the user running the telnet daemon or
client, or cause Denial of Service.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Heimdal users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-crypt/heimdal-1.5.1-r1"
References
==========
[ 1 ] 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:
http://security.gentoo.org/glsa/glsa-201202-05.xml
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.
License
=======
Copyright 2012 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -[ GLSA 201202-03 ] MaraDNS: Denial of Service
Gentoo Linux Security Advisory GLSA 201202-04
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http://security.gentoo.org/
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Severity: Normal
Title: PowerDNS: Denial of Service
Date: February 22, 2012
Bugs: #398403
ID: 201202-04
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Synopsis
========
A vulnerability in PowerDNS could allow a remote attacker to create a
Denial of Service condition.
Background
==========
The PowerDNS nameserver is an authoritative-only nameserver which uses
a flexible backend architecture.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-dns/pdns < 3.0.1 >= 3.0.1
Description
===========
A vulnerability has been found in PowerDNS which could cause a packet
loop of DNS responses.
Impact
======
A remote attacker could send specially crafted DNS response packets,
possibly resulting in a Denial of Service condition.
Workaround
==========
PowerDNS users can set "cache-ttl=0" in /etc/powerdns/pdns.conf and
then restart the PowerDNS daemon:
# /etc/init.d/pdns restart
Please review the PowerDNS Security Advisory below for more workaround
details.
Resolution
==========
All PowerDNS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/pdns-3.0.1"
References
==========
[ 1 ] CVE-2012-0206
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0206
[ 2 ] PowerDNS Security Advisory 2012-01
http://doc.powerdns.com/powerdns-advisory-2012-01.html
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201202-04.xml
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.
License
=======
Copyright 2012 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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Gentoo Linux Security Advisory GLSA 201202-03
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http://security.gentoo.org/
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Severity: Normal
Title: MaraDNS: Denial of Service
Date: February 22, 2012
Bugs: #397431
ID: 201202-03
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Synopsis
========
A hash collision vulnerability in MaraDNS allows remote attackers to
cause a Denial of Service condition.
Background
==========
MaraDNS is a proxy DNS server with permanent caching.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
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1 net-dns/maradns < 1.4.09 >= 1.4.09
Description
===========
MaraDNS does not properly randomize hash functions to protect against
hash collision attacks.
Impact
======
A remote attacker could send many specially crafted DNS recursive
queries, possibly resulting in a Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All MaraDNS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/maradns-1.4.09"
References
==========
[ 1 ] CVE-2012-0024
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0024
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201202-03.xml
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.
License
=======
Copyright 2012 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
