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Gentoo Linux Security Advisory GLSA 201206-05 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: Asterisk: Multiple vulnerabilities |
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Date: June 21, 2012 |
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Bugs: #413353, #418189, #418191 |
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ID: 201206-05 |
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Synopsis |
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======== |
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|
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Multiple vulnerabilities in Asterisk might allow remote attackers to |
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execute arbitrary code. |
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|
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Background |
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========== |
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|
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Asterisk is an open source telephony engine and toolkit. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 net-misc/asterisk < 1.8.12.1 >= 1.8.12.1 |
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|
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Description |
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=========== |
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|
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Multiple vulnerabilities have been found in Asterisk: |
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|
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* An error in manager.c allows shell access through the MixMonitor |
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application, GetVar, or Status (CVE-2012-2414). |
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* An error in chan_skinny.c could cause a heap-based buffer overflow |
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(CVE-2012-2415). |
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* An error in chan_sip.c prevents Asterisk from checking if a channel |
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exists before connected line updates (CVE-2012-2416). |
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* An error in chan_iax2.c may cause an invalid pointer to be called |
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(CVE-2012-2947). |
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* chan_skinny.c contains a NULL pointer dereference (CVE-2012-2948). |
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|
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Impact |
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====== |
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|
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A remote attacker could execute arbitrary code with the privileges of |
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the process or cause a Denial of Service condition. |
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|
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All Asterisk users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.12.1" |
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References |
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========== |
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|
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[ 1 ] CVE-2012-2414 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2414 |
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[ 2 ] CVE-2012-2415 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2415 |
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[ 3 ] CVE-2012-2416 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2416 |
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[ 4 ] CVE-2012-2947 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2947 |
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[ 5 ] CVE-2012-2948 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2948 |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-201206-05.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users' machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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https://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2012 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/2.5 |
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