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CVE-2012-5977

Status Candidate

Overview

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, when anonymous calls are enabled, allow remote attackers to cause a denial of service (resource consumption) by making anonymous calls from multiple sources and consequently adding many entries to the device state cache.

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
MD5 | c2ad750f56dc57b1f9f52346c4cb4889
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
MD5 | a9066a62d61024f3f4d9d0cbf7dbfe05
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
MD5 | 8703b1007ea49f068fa70dba9e32fd6c
Asterisk Project Security Advisory - AST-2012-015
Posted Jan 3, 2013
Authored by Matt Jordan | Site asterisk.org

Asterisk Project Security Advisory - Asterisk maintains an internal cache for devices. The device state cache holds the state of each device known to Asterisk, such that consumers of device state information can query for the last known state for a particular device, even if it is not part of an active call. The concept of a device in Asterisk can include things that do not have a physical representation. One way that this currently occurs is when anonymous calls are allowed in Asterisk. A device is automatically created and stored in the cache for each anonymous call that occurs; this is possible in the SIP and IAX2 channel drivers and through channel drivers that utilize the res_jabber/res_xmpp resource modules (Gtalk, Jingle, and Motif). Attackers exploiting this vulnerability can attack an Asterisk system configured to allow anonymous calls by varying the source of the anonymous call, continually adding devices to the device state cache and consuming a system's resources.

tags | advisory
advisories | CVE-2012-5977
MD5 | 1f0cefcdb9afc401724361ca6f691932
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