Bug 1195355 (CVE-2015-2042)

Summary:	CVE-2015-2042 kernel: rds: information handling flaw in rds sysctl files.
Product:	[Other] Security Response	Reporter:	Martin Prpič <mprpic>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	agordeev, aquini, bhu, dhoward, esammons, fhrbata, gansalmon, iboverma, itamar, jforbes, jkacur, jonathan, jross, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, matt, mchehab, mcressma, mguzik, nmurray, pholasek, plougher, rt-maint, rvrbovsk, vgoyal, williams, wmealing
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:	2015-03-11 05:53:29 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:	1199365
Bug Blocks:	1195358

Description Martin Prpič 2015-02-23 16:09:16 UTC

A flaw was found in the method that the linux kernel handles userspace tuning of the Reliable Datagram Sockets (RDS) system settings. The incorrect handling allowed a trusted user to set multiple RDS sysctls for RDS with specially formatted data.  Reading from these files also returned data from other sysctl settings that would be exposed via the same permissions to this user.

This bug provides little risk to users as the values that can be modified are exposed via proc sysctls with the same permissions.

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=db27ebb111e9f69efece08e4cb6a34ff980f8896

Comment 2 Wade Mealing 2015-03-04 06:36:59 UTC

Statement:

This issue affects the versions of the kernel as shipped with Red Hat Enterprise Linux 5 and 6 . Red Hat Product Security has rated this issue as having Low security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

Comment 3 Wade Mealing 2015-03-06 03:44:53 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1199365]