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
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2015-3215
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1169718 1172091 1207168 1210208 1210211
Blocks: 1169740
TreeView+ depends on / blocked
 
Reported: 2015-06-03 08:14 UTC by Petr Matousek
Modified: 2023-05-12 09:30 UTC (History)
5 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2021-10-21 00:45:49 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:1043 0 normal SHIPPED_LIVE Important: virtio-win security and bug fix update 2015-06-03 13:50:15 UTC
Red Hat Product Errata RHSA-2015:1044 0 normal SHIPPED_LIVE Important: virtio-win security and bug fix update 2015-06-03 14:09:31 UTC

Description Petr Matousek 2015-06-03 08:14:25 UTC 
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 08:31:32 UTC 
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 09:50:57 UTC 
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 10:10:05 UTC 
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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