Bug 732068 (CVE-2011-2940)

Summary:	CVE-2011-2940 stunnel: heap corruption flaw in 4.4x leads to remote DoS and possible code execution
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	avagarwa, sgrubb
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	stunnel 4.42	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-08-24 15:41:04 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:	732069
Bug Blocks:

Description Vincent Danen 2011-08-19 17:05:48 UTC

Stunnel 4.42 fixes a heap corruption vulnerability that may be exploited to possibly perform a remote DoS or remote code execution [1].  The upstream changelog indicates that only 4.40 and 4.41 are affected.

Fedora 16 has a candidate build of 4.41, which would introduce this flaw; it should be updated to 4.42 immediately.

[1] http://stunnel.org/?page=sdf_ChangeLog

Comment 1 Vincent Danen 2011-08-19 17:06:29 UTC

Created stunnel tracking bugs for this issue

Affects: fedora-rawhide [bug 732069]

Comment 2 Vincent Danen 2011-08-19 20:43:44 UTC

This was assigned the name CVE-2011-2940.

Comment 3 Vincent Danen 2011-08-19 20:48:10 UTC

Statement:

Not vulnerable.  This issue did not affect the versions of stunnel as shipped with Red Hat Enterprise Linux 4, 5, or 6.