Bug 928777 (CVE-2013-2264)

Summary: CVE-2013-2264 asterisk: Username disclosure in SIP channel driver (AST-2013-003)
Product: [Other] Security Response Reporter: Jan Lieskovsky <jlieskov>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: itamar, jeff, lmadsen, rbryant
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: impact=low,public=20130327,reported=20130328,source=debian,cvss2=2.6/AV:N/AC:H/Au:N/C:P/I:N/A:N,fedora-18/asterisk=affected,fedora-17/asterisk=affected,epel-6/asterisk=affected
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-04-10 18:39:46 EDT Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On: 928552, 928779, 928780    
Bug Blocks:    

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.