Bug 928777 - (CVE-2013-2264) CVE-2013-2264 asterisk: Username disclosure in SIP channel driver (AST-2013-003)
CVE-2013-2264 asterisk: Username disclosure in SIP channel driver (AST-2013-003)
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
low Severity low
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Assigned To: Red Hat Product Security
: Security
Depends On: 928552 928779 928780
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Reported: 2013-03-28 08:32 EDT by Jan Lieskovsky
Modified: 2013-04-10 18:39 EDT (History)
4 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2013-04-10 18:39:46 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Jan Lieskovsky 2013-03-28 08:32:41 EDT
An information disclosure flaw was found in the way SIP channel driver of Asterisk, an open-source telephony toolkit, handled user authentication when:
* alwaysauthreject option was enabled,
* allowguest was disabled, and
* autocreatepeer option was disabled.

A remote attacker could use this flaw to obtain information if particular user account exists by issuing certain INVITE, SUBSCRIBE and / or REGISTER transactions.

Upstream advisory:
[1] http://downloads.asterisk.org/pub/security/AST-2013-003.html

Relevant upstream patches:
[2] http://downloads.asterisk.org/pub/security/AST-2013-003-1.8.diff
[3] http://downloads.asterisk.org/pub/security/AST-2013-003-10.diff
[4] http://downloads.asterisk.org/pub/security/AST-2013-003-11.diff
Comment 1 Jan Lieskovsky 2013-03-28 08:34:03 EDT
This issue affects the versions of the asterisk package, as shipped with Fedora release of 18, 17, and Fedora EPEL-6. Please schedule an update.
Comment 2 Jan Lieskovsky 2013-03-28 08:36:18 EDT
Created asterisk tracking bugs for this issue

Affects: fedora-18 [bug 928552]
Comment 3 Jan Lieskovsky 2013-03-28 08:38:47 EDT
Created asterisk tracking bugs for this issue

Affects: fedora-17 [bug 928779]
Affects: epel-6 [bug 928780]
Comment 4 Fedora Update System 2013-04-06 20:44:37 EDT
asterisk-10.12.2-1.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

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