Bug 1114540 (CVE-2014-3535)

Summary:	CVE-2014-3535 Kernel: netdevice.h: NULL pointer dereference over VxLAN
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	agordeev, anton, aquini, carnil, chuhu, dhoward, fhrbata, jbenc, kernel-mgr, lwang, npajkovs, pholasek, pmatouse, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	A NULL pointer dereference flaw was found in the way the Linux kernel's networking implementation handled logging while processing certain invalid packets coming in via a VxLAN interface. A remote attacker could use this flaw to crash the system by sending a specially crafted packet to such an interface.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-02-10 08:04:13 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:	1096351, 1114549
Bug Blocks:	1114487

Description Prasad Pandit 2014-06-30 10:01:51 UTC

Linux kernel built with the networking suppport(CONFIG_NET) is vulnerable to
a NULL pointer dereference flaw. It could occur while processing packets over
VxLAN interface of a virtual network.

An unprivileged user/process could use this flaw to crash the system kernel
resulting in DoS.

Upstream fix:
-------------
  -> https://git.kernel.org/linus/256df2f3879efdb2e9808bdb1b54b16fbb11fa38

Comment 1 Prasad Pandit 2014-06-30 10:40:25 UTC

Statement:

This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 7 and Red Hat Enterprise MRG 2.

This issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 6. Future kernel updates for Red Hat Enterprise Linux 6
may address this issue.

Comment 5 Martin Prpič 2014-09-05 11:59:05 UTC

IssueDescription:

A NULL pointer dereference flaw was found in the way the Linux kernel's networking implementation handled logging while processing certain invalid packets coming in via a VxLAN interface. A remote attacker could use this flaw to crash the system by sending a specially crafted packet to such an interface.

Comment 6 errata-xmlrpc 2014-09-09 17:57:49 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:1167 https://rhn.redhat.com/errata/RHSA-2014-1167.html

Comment 7 errata-xmlrpc 2014-09-09 19:06:53 UTC

This issue has been addressed in following products:

  RHEV-H and Agents for RHEL-6

Via RHSA-2014:1168 https://rhn.redhat.com/errata/RHSA-2014-1168.html