Bug 730783 (CVE-2011-2910)

Summary:	CVE-2011-2910 ax25-tools: possible privilege escalation due to failure to check for s*id return values
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ralf, randyn3lrx, sindrepb
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:	2019-06-10 10:57:59 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:	730784
Bug Blocks:

Description Vincent Danen 2011-08-15 18:51:17 UTC

Dan Rosenberg reported [1] that ax25d does not check the return value of a setuid call responsible for dropping privileges.  If the setuid call failed, the daemon would continue to run with root privileges.

This has not yet been corrected upstream [2].

[1] http://www.openwall.com/lists/oss-security/2011/08/10/3
[2] http://www.linux-ax25.org/cvsweb/ax25-tools/ax25/ax25d.c

Comment 1 Vincent Danen 2011-08-15 18:52:21 UTC

Created ax25-tools tracking bugs for this issue

Affects: fedora-all [bug 730784]

Comment 2 Ralf Baechle 2011-08-18 13:11:05 UTC

A few hours ago Thomas Osterried has checked in a fix for CVE-2011-2910 into linux-ax25.org's CVS archive, see https://www.linux-ax25.org/wiki/CVS for CVS instructions and how to build.  No new release tarballs have been created yet (or in the past few eons ...) and due to various other fixes a CVS checkout is currently urgently recommended over the released tarballs.

Comment 3 Product Security DevOps Team 2019-06-10 10:57:59 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.