Bug 1750727 (CVE-2019-14835) - CVE-2019-14835 kernel: vhost-net: guest to host kernel escape during migration
Summary: CVE-2019-14835 kernel: vhost-net: guest to host kernel escape during migration
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-14835
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: 1750869 1750870 1750871 1750872 1750873 1750874 1750875 1750876 1750877 1750878 1750879 1750880 1750881 1750882 1750883 1750884 1750885 1750886 1750887 1750888 1750892 1751435 1751436 1751437 1752525 1752526 1752794
Blocks: 1750783 1751561 1751562 1751563 1751564 1751565 1751566
TreeView+ depends on / blocked
 
Reported: 2019-09-10 11:27 UTC by msiddiqu
Modified: 2021-02-16 21:23 UTC (History)
65 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-09-20 12:45:40 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2019:2884 0 None None None 2019-09-23 20:19:36 UTC
Red Hat Product Errata RHBA-2019:2887 0 None None None 2019-09-23 20:44:42 UTC
Red Hat Product Errata RHBA-2019:2888 0 None None None 2019-09-24 07:34:05 UTC
Red Hat Product Errata RHBA-2019:2908 0 None None None 2019-09-26 09:50:57 UTC
Red Hat Product Errata RHBA-2019:2915 0 None None None 2019-09-26 19:39:10 UTC
Red Hat Product Errata RHBA-2019:2919 0 None None None 2019-09-27 09:22:39 UTC
Red Hat Product Errata RHBA-2019:2920 0 None None None 2019-09-27 09:22:47 UTC
Red Hat Product Errata RHBA-2019:2926 0 None None None 2019-09-30 10:34:40 UTC
Red Hat Product Errata RHSA-2019:2827 0 None None None 2019-09-20 06:30:17 UTC
Red Hat Product Errata RHSA-2019:2828 0 None None None 2019-09-20 06:26:44 UTC
Red Hat Product Errata RHSA-2019:2829 0 None None None 2019-09-20 07:45:04 UTC
Red Hat Product Errata RHSA-2019:2830 0 None None None 2019-09-20 06:45:43 UTC
Red Hat Product Errata RHSA-2019:2854 0 None None None 2019-09-21 17:22:27 UTC
Red Hat Product Errata RHSA-2019:2862 0 None None None 2019-09-23 09:14:08 UTC
Red Hat Product Errata RHSA-2019:2863 0 None None None 2019-09-23 09:25:26 UTC
Red Hat Product Errata RHSA-2019:2864 0 None None None 2019-09-23 11:41:14 UTC
Red Hat Product Errata RHSA-2019:2865 0 None None None 2019-09-23 11:10:20 UTC
Red Hat Product Errata RHSA-2019:2866 0 None None None 2019-09-23 11:29:41 UTC
Red Hat Product Errata RHSA-2019:2867 0 None None None 2019-09-23 12:38:16 UTC
Red Hat Product Errata RHSA-2019:2869 0 None None None 2019-09-23 12:32:34 UTC
Red Hat Product Errata RHSA-2019:2889 0 None None None 2019-09-24 12:45:33 UTC
Red Hat Product Errata RHSA-2019:2899 0 None None None 2019-09-25 12:17:29 UTC
Red Hat Product Errata RHSA-2019:2900 0 None None None 2019-09-25 12:25:09 UTC
Red Hat Product Errata RHSA-2019:2901 0 None None None 2019-09-25 12:12:13 UTC
Red Hat Product Errata RHSA-2019:2924 0 None None None 2019-09-27 13:07:42 UTC

Description msiddiqu 2019-09-10 11:27:20 UTC 
A buffer overflow flaw was found in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.
Comment 1 msiddiqu 2019-09-10 11:27:26 UTC 
Acknowledgments:

Name: Peter Pi (Tencent Blade Team)
Comment 13 Petr Matousek 2019-09-16 16:19:22 UTC 
Upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=060423bfdee3f8bc6e2c1bac97de24d5415e2bc4
Comment 17 Petr Matousek 2019-09-17 08:57:14 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1752794]
Comment 23 Doran Moppert 2019-09-19 02:53:41 UTC 
External References:

https://access.redhat.com/security/vulnerabilities/kernel-vhost
https://www.openwall.com/lists/oss-security/2019/09/17/1
Comment 24 Petr Matousek 2019-09-19 07:18:34 UTC 
Statement:

Red Hat Product Security is aware of this issue. Updates will be released as they become available. For additional information, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/kernel-vhost
Comment 25 Petr Matousek 2019-09-19 07:18:38 UTC 
Mitigation:

For mitigation related information, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/kernel-vhost
Comment 28 errata-xmlrpc 2019-09-20 06:26:41 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:2828 https://access.redhat.com/errata/RHSA-2019:2828
Comment 29 errata-xmlrpc 2019-09-20 06:30:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:2827 https://access.redhat.com/errata/RHSA-2019:2827
Comment 30 errata-xmlrpc 2019-09-20 06:45:40 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2830 https://access.redhat.com/errata/RHSA-2019:2830
Comment 31 errata-xmlrpc 2019-09-20 07:44:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2829 https://access.redhat.com/errata/RHSA-2019:2829
Comment 32 Product Security DevOps Team 2019-09-20 12:45:40 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-14835
Comment 33 errata-xmlrpc 2019-09-21 17:22:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2854 https://access.redhat.com/errata/RHSA-2019:2854
Comment 36 errata-xmlrpc 2019-09-23 09:14:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2862 https://access.redhat.com/errata/RHSA-2019:2862
Comment 37 errata-xmlrpc 2019-09-23 09:25:23 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:2863 https://access.redhat.com/errata/RHSA-2019:2863
Comment 38 errata-xmlrpc 2019-09-23 11:10:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.6 Extended Update Support

Via RHSA-2019:2865 https://access.redhat.com/errata/RHSA-2019:2865
Comment 39 errata-xmlrpc 2019-09-23 11:29:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.5 Extended Update Support

Via RHSA-2019:2866 https://access.redhat.com/errata/RHSA-2019:2866
Comment 40 errata-xmlrpc 2019-09-23 11:41:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.6 Extended Update Support

Via RHSA-2019:2864 https://access.redhat.com/errata/RHSA-2019:2864
Comment 41 errata-xmlrpc 2019-09-23 12:32:30 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.6 Advanced Update Support

Via RHSA-2019:2869 https://access.redhat.com/errata/RHSA-2019:2869
Comment 42 errata-xmlrpc 2019-09-23 12:38:12 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.4 Advanced Update Support
  Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions
  Red Hat Enterprise Linux 7.4 Telco Extended Update Support

Via RHSA-2019:2867 https://access.redhat.com/errata/RHSA-2019:2867
Comment 43 errata-xmlrpc 2019-09-24 12:45:29 UTC 
This issue has been addressed in the following products:

  Red Hat Virtualization 4 for Red Hat Enterprise Linux 7

Via RHSA-2019:2889 https://access.redhat.com/errata/RHSA-2019:2889
Comment 45 errata-xmlrpc 2019-09-25 12:12:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.5 Advanced Update Support

Via RHSA-2019:2901 https://access.redhat.com/errata/RHSA-2019:2901
Comment 46 errata-xmlrpc 2019-09-25 12:17:26 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.2 Telco Extended Update Support
  Red Hat Enterprise Linux 7.2 Advanced Update Support
  Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions

Via RHSA-2019:2899 https://access.redhat.com/errata/RHSA-2019:2899
Comment 47 errata-xmlrpc 2019-09-25 12:25:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.3 Telco Extended Update Support
  Red Hat Enterprise Linux 7.3 Advanced Update Support
  Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions

Via RHSA-2019:2900 https://access.redhat.com/errata/RHSA-2019:2900
Comment 48 errata-xmlrpc 2019-09-27 13:07:38 UTC 
This issue has been addressed in the following products:

  Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUS

Via RHSA-2019:2924 https://access.redhat.com/errata/RHSA-2019:2924
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