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CVE-2012-5976

Status Candidate

Overview

Multiple stack consumption vulnerabilities in Asterisk Open Source 1.8.x before 1.8.19.1, 10.x before 10.11.1, and 11.x before 11.1.2; Certified Asterisk 1.8.11 before 1.8.11-cert10; and Asterisk Digiumphones 10.x-digiumphones before 10.11.1-digiumphones allow remote attackers to cause a denial of service (daemon crash) via TCP data using the (1) SIP, (2) HTTP, or (3) XMPP protocol.

Related Files

Gentoo Linux Security Advisory 201401-15
Posted Jan 21, 2014
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201401-15 - Multiple vulnerabilities have been found in Asterisk, the worst of which may allow execution of arbitrary code. Versions less than 11.7.0 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2012-5976, CVE-2012-5977, CVE-2013-2264, CVE-2013-2685, CVE-2013-2686, CVE-2013-5641, CVE-2013-5642, CVE-2013-7100
SHA-256 | d5b3fc8ed465d4421b3d81a545983bd6659d93187fad9065936730f85fd097e5
Debian Security Advisory 2605-2
Posted Jan 20, 2013
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2605-2 - The security update released in DSA 2605 for Asterisk, caused a regression that could lead to crashes. Updated packages have now been made available to correct that behavior.

tags | advisory
systems | linux, debian
advisories | CVE-2012-5976, CVE-2012-5977
SHA-256 | 51c12efbfe4e73991557e6b2242188364e338b13b4cd3dee176fb0534ff5b3f0
Debian Security Advisory 2605-1
Posted Jan 15, 2013
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2605-1 - Several vulnerabilities were discovered in Asterisk, a PBX and telephony toolkit, that allow remote attackers to perform denial of service attacks.

tags | advisory, remote, denial of service, vulnerability
systems | linux, debian
advisories | CVE-2012-5976, CVE-2012-5977
SHA-256 | e42362badf3265d9356fcd4cdf050c88510bf7b13ca8d4defe28d4c52af1d6cc
Asterisk Project Security Advisory - AST-2012-014
Posted Jan 3, 2013
Authored by Mark Michelson | Site asterisk.org

Asterisk Project Security Advisory - Asterisk has several places where messages received over various network transports may be copied in a single stack allocation. In the case of TCP, since multiple packets in a stream may be concatenated together, this can lead to large allocations that overflow the stack. In the case of SIP, it is possible to do this before a session is established. Keep in mind that SIP over UDP is not affected by this vulnerability. With HTTP and XMPP, a session must first be established before the vulnerability may be exploited. The XMPP vulnerability exists both in the res_jabber.so module in Asterisk 1.8, 10, and 11 as well as the res_xmpp.so module in Asterisk 11.

tags | advisory, web, overflow, udp, tcp
advisories | CVE-2012-5976
SHA-256 | 0eda4a18f48435624a5845545ce7bded4867ce8731fbb4a94114a41619146e72
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