Bug 651607 (CVE-2010-4221)

Summary:	CVE-2010-4221 proftpd: multiple stack-based buffer overflows in pr_netio_telnet_gets()
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	matthias, paul
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-07-01 04:58:09 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	651608
Bug Blocks:

Description Vincent Danen 2010-11-09 21:36:36 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2010-4221 to
the following vulnerability:

Name: CVE-2010-4221
URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4221
Assigned: 20101109
Reference: MISC: http://www.zerodayinitiative.com/advisories/ZDI-10-229/
Reference: CONFIRM: http://bugs.proftpd.org/show_bug.cgi?id=3521
Reference: CONFIRM: http://www.proftpd.org/docs/NEWS-1.3.3c
Reference: BID:44562
Reference: URL: http://www.securityfocus.com/bid/44562
Reference: SECUNIA:42052
Reference: URL: http://secunia.com/advisories/42052

Multiple stack-based buffer overflows in the pr_netio_telnet_gets
function in netio.c in ProFTPD before 1.3.3c allow remote attackers to
execute arbitrary code via vectors involving a TELNET IAC escape
character to a (1) FTP or (2) FTPS server.


Note: the impact of this is somewhat lessened as proftpd runs as the 'nobody' user.  According to upstream, this vulnerability has been present since 1.3.2rc3.

Comment 1 Vincent Danen 2010-11-09 21:38:02 UTC

Created proftpd tracking bugs for this issue

Affects: fedora-all [bug 651608]

Comment 2 Paul Howarth 2011-06-29 12:06:32 UTC

I believe this one can be closed now.

Comment 3 Vincent Danen 2011-07-01 04:58:09 UTC

All current releases now have this fixed.

F-15 and Rawhide have 1.3.4rc2.

EL-4, EL-5, EL-6, F-13 and F-14 have 1.3.3e.