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Bug 1447734 - (CVE-2017-7487) CVE-2017-7487 kernel: Reference counter leak in ipxitf_ioctl resulting into use after free
CVE-2017-7487 kernel: Reference counter leak in ipxitf_ioctl resulting into u...
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20170502,reported=2...
: Security
Depends On: 1450417
Blocks: 1447735
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Reported: 2017-05-03 11:33 EDT by Adam Mariš
Modified: 2017-05-23 06:15 EDT (History)
21 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
A reference counter leak in Linux kernel in ipxitf_ioctl function was found which results in a use after free vulnerability that's triggerable from unprivileged userspace when IPX interface is configured.
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Clone Of:
Environment:
Last Closed: 2017-05-12 09:28:36 EDT
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CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Adam Mariš 2017-05-03 11:33:43 EDT 
A reference counter leak in ipxitf_ioctl function was found which results into use after free vulnerability that's triggerable from unprivileged userspace when IPX interface is configured.

References:

http://seclists.org/oss-sec/2017/q2/251

https://patchwork.ozlabs.org/patch/757549/

Upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee0d8d8482345ff97a75a7d747efc309f13b0d80
Comment 1 Adam Mariš 2017-05-03 11:33:55 EDT 
Acknowledgments:

Name: Li Qiang (Qihoo 360)
Comment 4 Vladis Dronov 2017-05-12 09:20:25 EDT 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1450417]
Comment 6 Eric Christensen 2017-05-16 08:29:42 EDT 
Statement:

This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2 as the code with the flaw is not shipped with the products listed.
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