Bug 1452688 (CVE-2017-9076) - CVE-2017-9076 kernel: net: IPv6 DCCP implementation mishandles inheritance
Summary: CVE-2017-9076 kernel: net: IPv6 DCCP implementation mishandles inheritance
Status: NEW
Alias: CVE-2017-9076
Product: Security Response
Classification: Other
Component: vulnerability   
(Show other bugs)
Version: unspecified
Hardware: All Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20170510,repor...
Keywords: Security
Depends On: 1455638 1450973 1455609 1455612 1455614 1455635 1455636 1455637 1455639
Blocks: 1452530
TreeView+ depends on / blocked
 
Reported: 2017-05-19 13:20 UTC by Andrej Nemec
Modified: 2019-02-08 14:56 UTC (History)
31 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
The IPv6 DCCP implementation in the Linux kernel mishandles inheritance, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890. An unprivileged local user could use this flaw to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.
Story Points: ---
Clone Of:
Environment:
Last Closed:
Type: ---
Regression: ---
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CRM:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:1842 normal SHIPPED_LIVE Important: kernel security, bug fix, and enhancement update 2017-08-01 18:22:09 UTC
Red Hat Product Errata RHSA-2017:2077 normal SHIPPED_LIVE Important: kernel-rt security, bug fix, and enhancement update 2017-08-01 18:13:37 UTC
Red Hat Product Errata RHSA-2017:2669 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2017-09-07 00:36:52 UTC
Red Hat Product Errata RHSA-2018:1854 None None None 2018-06-19 04:47 UTC

Description Andrej Nemec 2017-05-19 13:20:22 UTC
The IPv6 DCCP implementation in the Linux kernel mishandles inheritance, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890. 

Upstream patch:

https://github.com/torvalds/linux/commit/83eaddab4378db256d00d295bda6ca997cd13a52

References:

https://patchwork.ozlabs.org/patch/760370/

Comment 1 Andrej Nemec 2017-05-19 13:28:52 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1450973]

Comment 5 Vladis Dronov 2017-05-25 15:42:33 UTC
Statement:

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates of this product due to its life cycle. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.

This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 6, 7 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 6, 7 and Red Hat Enterprise MRG 2 may address this issue.

Comment 10 Fedora Update System 2017-06-01 05:10:40 UTC
kernel-4.11.3-200.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.

Comment 11 Fedora Update System 2017-06-13 19:57:00 UTC
kernel-4.11.4-100.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

Comment 12 errata-xmlrpc 2017-08-01 19:16:30 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:2077 https://access.redhat.com/errata/RHSA-2017:2077

Comment 13 errata-xmlrpc 2017-08-02 07:56:42 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1842 https://access.redhat.com/errata/RHSA-2017:1842

Comment 14 errata-xmlrpc 2017-09-06 20:42:12 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise MRG 2

Via RHSA-2017:2669 https://access.redhat.com/errata/RHSA-2017:2669

Comment 15 Justin M. Forbes 2018-01-29 18:01:23 UTC
This was fixed for Fedora with 4.12 kernel updates.

Comment 16 errata-xmlrpc 2018-06-19 04:47:09 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:1854 https://access.redhat.com/errata/RHSA-2018:1854


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