Bug 929168 (CVE-2013-1747)

Summary: CVE-2013-1747 ngircd: DoS (assertion failure, crash) via a KICK command for a user who is not on the associated channel
Product: [Other] Security Response Reporter: Jan Lieskovsky <jlieskov>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: andreas, kevin
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: impact=moderate,public=20130315,reported=20130328,source=cve,cvss2=4.0/AV:N/AC:L/Au:S/C:N/I:N/A:P,fedora-17/ngircd=notaffected,fedora-18/ngircd=affected,epel-5/ngircd=notaffected,epel-6/ngircd=affected
Fixed In Version: ngircd-20.2 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On: 929170, 929171    
Bug Blocks:    

Description Jan Lieskovsky 2013-03-29 07:27:47 EDT
Common Vulnerabilities and Exposures assigned an identifier CVE-2013-1747 to the following vulnerability:

channel.c in ngIRCd 20 and 20.1 allows remote attackers to cause a denial of service (assertion failure and crash) via a KICK command for a user who is not on the associated channel.

[1] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1747
[2] http://arthur.barton.de/pipermail/ngircd-ml/2013-February/000623.html
[3] http://arthur.barton.de/pipermail/ngircd-ml/2013-February/000625.html
[4] https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd.git;h=0e63fb3fa7ac4ca048e8c2b648d2be3fd0572311
[5] http://ngircd.barton.de/doc/NEWS
Comment 1 Jan Lieskovsky 2013-03-29 07:29:14 EDT
This issue affects the versions of the ngircd package, as shipped with Fedora release of 18 and Fedora EPEL-6. Please schedule an update.
Comment 2 Jan Lieskovsky 2013-03-29 07:30:07 EDT
Created ngircd tracking bugs for this issue

Affects: fedora-18 [bug 929170]
Affects: epel-6 [bug 929171]
Comment 3 Jan Lieskovsky 2013-03-29 07:34:23 EDT
Based on upstream ngIRCd 20.2 notification:

this issue is reported to affect only ngIRCd versions of "ngIRCd 20 and 20.1 (Please note that all releases before 20 are NOT affected by the bug mentioned

therefore I didn't create a child bug for Fedora-17 and EPEL-5. But if you are of the opinion that upstream patch:

after backport should be applied against Fedora-17 and EPEL-5 versions too, and would need child bugs for those versions, let me know and I will create them.

Thank you, Jan.
Comment 4 Fedora Update System 2013-04-07 20:27:00 EDT
ngircd-20.2-1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 5 Fedora Update System 2013-04-12 20:12:49 EDT
ngircd-20.2-1.el6 has been pushed to the Fedora EPEL 6 stable repository.  If problems still persist, please make note of it in this bug report.