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Bug 1226442 - (CVE-2015-3212) CVE-2015-3212 kernel: SCTP race condition allows list corruption and panic from userlevel
CVE-2015-3212 kernel: SCTP race condition allows list corruption and panic fr...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20150630,repor...
: Security
Depends On: 1206474 1227960 1227961 1227962 1227963 1244665 1244666 1244684 1244692
Blocks: 1226448
  Show dependency tree / graph
 
Reported: 2015-05-29 15:20 EDT by Fabio Olive Leite
Modified: 2018-08-28 17:58 EDT (History)
22 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
A race condition flaw was found in the way the Linux kernel's SCTP implementation handled Address Configuration lists when performing Address Configuration Change (ASCONF). A local attacker could use this flaw to crash the system via a race condition triggered by setting certain ASCONF options on a socket.
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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:1778 normal SHIPPED_LIVE Important: kernel security and bug fix update 2015-09-15 12:03:32 EDT
Red Hat Product Errata RHSA-2015:1787 normal SHIPPED_LIVE Important: kernel-rt security, bug fix, and enhancement update 2015-09-15 09:22:07 EDT
Red Hat Product Errata RHSA-2015:1788 normal SHIPPED_LIVE Important: kernel-rt security, bug fix, and enhancement update 2015-09-15 09:38:06 EDT

  None (edit)
Description Fabio Olive Leite 2015-05-29 15:20:06 EDT 
A flaw was found in the Linux kernels handling of the SCTPs automatic handling of dynamic multi-homed connections.  A race condition in the way the Linux kernel handles lists of associations in SCTP sockets using Address Configuration Change messages, leading to list corruption and panics.

References:
http://marc.info/?l=linux-netdev&m=143277436124732&w=2

Commit:
https://git.kernel.org/linus/2d45a02d0166caf2627fe91897c6ffc3b19514c4
Comment 1 Wade Mealing 2015-06-02 08:37:31 EDT 
Acknowledgements:

This issue was discovered by Ji Jianwen of Red Hat Engineering.
Comment 4 Wade Mealing 2015-07-06 23:30:10 EDT 
Statement:

This issue does not affect the Linux kernels as shipped with Red Hat Enterprise Linux 5.

This issue affects the Linux kernels as shipped with Red Hat Enterprise Linux 6, 7 and Red Hat Enterprise MRG 2.
Comment 9 errata-xmlrpc 2015-09-15 05:23:43 EDT 
This issue has been addressed in the following products:

  MRG for RHEL-6 v.2

Via RHSA-2015:1787 https://rhn.redhat.com/errata/RHSA-2015-1787.html
Comment 10 errata-xmlrpc 2015-09-15 05:39:30 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:1788 https://rhn.redhat.com/errata/RHSA-2015-1788.html
Comment 11 errata-xmlrpc 2015-09-15 08:07:06 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:1778 https://rhn.redhat.com/errata/RHSA-2015-1778.html
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