Bug 968484 (CVE-2013-2128)

Summary: CVE-2013-2128 Kernel: net: oops from tcp_collapse() when using splice(2)
Product: [Other] Security Response Reporter: Prasad J Pandit <ppandit>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: agordeev, anton, bhu, davej, dhoward, esammons, fhrbata, gansalmon, iboverma, itamar, jforbes, jkacur, jonathan, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, mcressma, plougher, rt-maint, rvrbovsk, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-06-09 12:41:57 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 863512, 968871    
Bug Blocks: 968402    

Description Prasad J Pandit 2013-05-29 19:04:29 UTC
Linux kernel which supports splice(2) call to move data across file/socket
descriptors via a pipe buffers, is vulnerable to a kernel crash that occurs
while calling splice(2) over a tcp socket which in turn calls tcp_read_sock().

A user/program could use this flaw to cause system crash, resulting in DoS.

Upstream fix:
-------------
  -> https://git.kernel.org/linus/baff42ab1494528907bf4d5870359e31711746ae

Comment 1 Prasad J Pandit 2013-05-30 05:44:37 UTC
Statement:

This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2.

This issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 6. Future kernel updates for Red Hat Enterprise Linux 6 may address this issue.

Comment 4 errata-xmlrpc 2013-07-16 17:30:29 UTC
This issue has been addressed in following products:

  OpenStack 3 for RHEL 6

Via RHSA-2013:1080 https://rhn.redhat.com/errata/RHSA-2013-1080.html

Comment 5 errata-xmlrpc 2013-07-16 18:36:22 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:1051 https://rhn.redhat.com/errata/RHSA-2013-1051.html