Bug 1655904 (CVE-2018-9568) - CVE-2018-9568 kernel: Memory corruption due to incorrect socket cloning
Summary: CVE-2018-9568 kernel: Memory corruption due to incorrect socket cloning
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-9568
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: 1657117 1657351 1657352 1657353 1657354 1657355 1717809 1725170 1725171 1725172 1770246 1770247 1770249
Blocks: 1655907
TreeView+ depends on / blocked
 
Reported: 2018-12-04 09:01 UTC by Andrej Nemec
Modified: 2021-02-16 22:43 UTC (History)
49 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A possible memory corruption due to a type confusion was found in the Linux kernel in the sk_clone_lock() function in the net/core/sock.c. The possibility of local escalation of privileges cannot be fully ruled out for a local unprivileged attacker.
Clone Of:
Environment:
Last Closed: 2019-06-10 10:43:30 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2019:0512 0 None None None 2019-03-13 22:58:03 UTC
Red Hat Product Errata RHSA-2019:0514 0 None None None 2019-03-13 18:46:31 UTC
Red Hat Product Errata RHSA-2019:2696 0 None None None 2019-09-10 13:46:09 UTC
Red Hat Product Errata RHSA-2019:2730 0 None None None 2019-09-11 09:09:20 UTC
Red Hat Product Errata RHSA-2019:2736 0 None None None 2019-09-11 15:29:23 UTC
Red Hat Product Errata RHSA-2019:3967 0 None None None 2019-11-26 11:52:32 UTC
Red Hat Product Errata RHSA-2019:4056 0 None None None 2019-12-03 08:11:31 UTC
Red Hat Product Errata RHSA-2019:4159 0 None None None 2019-12-10 11:58:36 UTC
Red Hat Product Errata RHSA-2019:4164 0 None None None 2019-12-10 11:52:18 UTC
Red Hat Product Errata RHSA-2019:4255 0 None None None 2019-12-17 09:38:32 UTC

Description Andrej Nemec 2018-12-04 09:01:31 UTC 
A possible memory corruption due to a type confusion was found in the Linux kernel in the sk_clone_lock() function in the net/core/sock.c. A possibility of local escalation of privileges cannot be fully ruled out for a local unprivileged attacker.

References:

https://source.android.com/security/bulletin/2018-12-01.html#kernel-components

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d538fa60bad4f7b23193c89e843797a1cf71ef3
Comment 4 errata-xmlrpc 2019-03-13 18:46:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:0514 https://access.redhat.com/errata/RHSA-2019:0514
Comment 5 errata-xmlrpc 2019-03-13 22:58:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:0512 https://access.redhat.com/errata/RHSA-2019:0512
Comment 8 errata-xmlrpc 2019-09-10 13:46:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.4 Extended Update Support

Via RHSA-2019:2696 https://access.redhat.com/errata/RHSA-2019:2696
Comment 9 errata-xmlrpc 2019-09-11 09:09:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise MRG 2

Via RHSA-2019:2730 https://access.redhat.com/errata/RHSA-2019:2730
Comment 10 errata-xmlrpc 2019-09-11 15:29:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:2736 https://access.redhat.com/errata/RHSA-2019:2736
Comment 12 Petr Matousek 2019-11-06 13:19:28 UTC 
Mitigation:

The currently known attack vector uses IPv6 for exploitation. If IPv6 is not needed on the host, disabling it mitigates this attack vector. Please see https://access.redhat.com/solutions/8709 for instructions on how to disable IPv6 in Red Hat Enterprise Linux.
Comment 14 errata-xmlrpc 2019-11-26 11:52:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.5 Extended Update Support

Via RHSA-2019:3967 https://access.redhat.com/errata/RHSA-2019:3967
Comment 15 errata-xmlrpc 2019-12-03 08:11:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.5 Advanced Update Support

Via RHSA-2019:4056 https://access.redhat.com/errata/RHSA-2019:4056
Comment 16 errata-xmlrpc 2019-12-10 11:52:11 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-2019:4164 https://access.redhat.com/errata/RHSA-2019:4164
Comment 17 errata-xmlrpc 2019-12-10 11:58:33 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-2019:4159 https://access.redhat.com/errata/RHSA-2019:4159
Comment 18 errata-xmlrpc 2019-12-17 09:38:26 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.6 Advanced Update Support

Via RHSA-2019:4255 https://access.redhat.com/errata/RHSA-2019:4255
Note You need to log in before you can comment on or make changes to this bug.