Bug 1196581 (CVE-2015-1421)

Summary: CVE-2015-1421 kernel: net: slab corruption from use after free on INIT collisions
Product: [Other] Security Response Reporter: Petr Matousek <pmatouse>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: aquini, bhu, dhoward, fhrbata, gansalmon, iboverma, itamar, jforbes, jkacur, jonathan, jross, jwboyer, kernel-maint, kernel-mgr, lgoncalv, madhu.chinakonda, matt, mchehab, mcressma, nmurray, plougher, ppandit, rt-maint, rvrbovsk, sauchter, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
A use-after-free flaw was found in the way the Linux kernel's SCTP implementation handled authentication key reference counting during INIT collisions. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system.
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-08 02:39:07 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: 1135425, 1183959, 1196587, 1196588, 1196589, 1196590, 1196591, 1196592, 1196593, 1196594, 1196595    
Bug Blocks: 1186793    

Description Petr Matousek 2015-02-26 10:33:34 UTC
An use after free flaw was found in the Linux kernel SCTP implementation
handled auth keys reference counting during INIT collisions.

A remote user could use this flaw to crash the system or, though unlikely,
escalate their privileges on the system.

Upstream patch:

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=600ddd6825543962fb807884169e57b580dba208

Acknowledgements:

This issue was discovered by Sun Baoliang of Red Hat.

Comment 1 Petr Matousek 2015-02-26 10:42:03 UTC
Statement:

This issue did not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2. Future Linux kernel updates for the respective releases may address this issue.

Comment 5 Petr Matousek 2015-02-26 10:43:49 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1196595]

Comment 6 Fedora Update System 2015-03-09 08:17:12 UTC
kernel-3.18.8-201.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 Fedora Update System 2015-03-14 09:15:21 UTC
kernel-3.18.9-100.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 errata-xmlrpc 2015-03-26 11:58:30 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:0727 https://rhn.redhat.com/errata/RHSA-2015-0727.html

Comment 9 errata-xmlrpc 2015-03-26 16:53:20 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:0726 https://rhn.redhat.com/errata/RHSA-2015-0726.html

Comment 10 errata-xmlrpc 2015-03-30 08:19:41 UTC
This issue has been addressed in the following products:

  MRG for RHEL-6 v.2

Via RHSA-2015:0751 https://rhn.redhat.com/errata/RHSA-2015-0751.html

Comment 11 errata-xmlrpc 2015-04-07 15:13:11 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.5 EUS - Server and Compute Node Only

Via RHSA-2015:0782 https://rhn.redhat.com/errata/RHSA-2015-0782.html

Comment 12 errata-xmlrpc 2015-04-21 15:04:04 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2015:0864 https://rhn.redhat.com/errata/RHSA-2015-0864.html

Comment 13 errata-xmlrpc 2015-05-27 12:07:22 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.4 AUS - Server Only

Via RHSA-2015:1030 https://rhn.redhat.com/errata/RHSA-2015-1030.html

Comment 14 errata-xmlrpc 2015-06-09 14:24:42 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.2 AUS

Via RHSA-2015:1082 https://rhn.redhat.com/errata/RHSA-2015-1082.html