Bug 470820 (CVE-2008-5006)

Summary:	CVE-2008-5006 uw-imap: NULL pointer dereference in smtp.c
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	bressers, jdennis, jorton, rdieter
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
URL:	http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-5006
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-01-30 14:49:34 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:

Description Tomas Hoger 2008-11-10 14:09:13 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2008-5006 to the following vulnerability:

smtp.c in the c-client library in University of Washington IMAP
Toolkit 2007b allows remote SMTP servers to cause a denial of service
(NULL pointer dereference and application crash) by responding to the
QUIT command with a close of the TCP connection instead of the
expected 221 response code.

References:
http://www.openwall.com/lists/oss-security/2008/11/03/5

Comment 1 Josh Bressers 2008-11-25 20:07:19 UTC

This source is also contained in pine (which we ship in RHEL2.1).  It's unlikely that pine would ever be connecting to a malicious SMTP server.

Comment 2 Tomas Hoger 2009-01-30 14:49:34 UTC

The affected code is not used by any application shipped in Red Hat Enterprise Linux 2.1, 3, 4, and 5.  The impact of this flaw is limited to a crash of the applications connecting to a misbehaving SMTP server.  Due to those reasons, there's currently no plan to include the fix in the imap packages as shipped in Red Hat Enterprise Linux 2.1 and 3, and the libc-client packages as shipped in Red Hat Enterprise Linux 4 and 5.

Version of uw-imap client packages as shipped in Fedora are already updated to upstream version 2007e, containing a fix for this issue.