Bug 1227634 – CVE-2015-3215 virtio-win: netkvm: malformed packet can cause BSOD

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Bug 1227634 - (CVE-2015-3215) CVE-2015-3215 virtio-win: netkvm: malformed packet can cause BSOD

Summary:	CVE-2015-3215 virtio-win: netkvm: malformed packet can cause BSOD

Status:	NEW

Aliases:	CVE-2015-3215

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	high Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=important,public=20141215,repo...
Keywords:	Security

Depends On:	1169718 1172091 1207168 1210208 1210211
Blocks:	1169740
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Reported:	2015-06-03 04:14 EDT by Petr Matousek
Modified:	2018-08-17 14:07 EDT (History)
CC List:	6 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:	It was found that the Windows Virtio NIC driver did not sufficiently sanitize the length of the incoming IP packets, as demonstrated by a packet with IP options present but the overall packet length not being adjusted to reflect the length of those options. A remote attacker able to send a specially crafted IP packet to the guest could use this flaw to crash that guest.
Story Points:	---
Clone Of:
Environment:
Last Closed:
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2015:1043	normal	SHIPPED_LIVE	Important: virtio-win security and bug fix update	2015-06-03 09:50:15 EDT
Red Hat Product Errata	RHSA-2015:1044	normal	SHIPPED_LIVE	Important: virtio-win security and bug fix update	2015-06-03 10:09:31 EDT

Groups: None (edit)

Description Petr Matousek 2015-06-03 04:14:25 EDT

It was found that the Windows Virtio NIC driver did not sufficiently sanitize the length of the incoming IP packets, as demonstrated by a packet with IP options present but the overall packet length not being adjusted to reflect the length of those options.

A remote attacker able to send a specially crafted IP packet to the guest could use this flaw to crash that guest.

Upstream commits:

https://github.com/YanVugenfirer/kvm-guest-drivers-windows/commit/723416fa4210b7464b28eab89cc76252e6193ac1
https://github.com/YanVugenfirer/kvm-guest-drivers-windows/commit/fbfa4d1083ea84c5429992ca3e996d7d4fbc8238

Acknowledgements:

Red Hat would like to thank Google Project Zero for reporting this issue.

Comment 1 Petr Matousek 2015-06-03 04:31:32 EDT

Statement:

This issue does affect the virtio-win packages as shipped with Red Hat Enteprise Linux 6 and 7. Future updates for the respective releases will address this issue.

Comment 3 errata-xmlrpc 2015-06-03 05:50:57 EDT

This issue has been addressed in the following products:

  Supplementary for Red Hat Enterprise Linux 6

Via RHSA-2015:1043 https://rhn.redhat.com/errata/RHSA-2015-1043.html

Comment 4 errata-xmlrpc 2015-06-03 06:10:05 EDT

This issue has been addressed in the following products:

  Supplementary for Red Hat Enterprise Linux 7

Via RHSA-2015:1044 https://rhn.redhat.com/errata/RHSA-2015-1044.html

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