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Bug 1490421 - (CVE-2017-14489) CVE-2017-14489 kernel: scsi: nlmsg is not properly parsed in iscsi_if_rx function
CVE-2017-14489 kernel: scsi: nlmsg is not properly parsed in iscsi_if_rx func...
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=20170827,repor...
: Security
Depends On: 1487070 1494489 1494490 1494491 1481997 1490423
Blocks: 1490424
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Reported: 2017-09-11 10:02 EDT by Adam Mariš
Modified: 2018-08-28 18:21 EDT (History)
46 users (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
The iscsi_if_rx() function in 'drivers/scsi/scsi_transport_iscsi.c' in the Linux kernel from v2.6.24-rc1 through 4.13.2 allows local users to cause a denial of service (a system panic) by making a number of certain syscalls by leveraging incorrect length validation in the kernel code.
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Description Adam Mariš 2017-09-11 10:02:51 EDT 
The iscsi_if_rx() function in 'drivers/scsi/scsi_transport_iscsi.c' in the Linux kernel since v2.6.24-rc1 through 4.13.2 allows local users to cause a denial of service (a system panic) by making a number of certain syscalls by leveraging incorrect length validation in the kernel code.

References:

http://seclists.org/oss-sec/2017/q3/506

A proposed upstream patch:

https://patchwork.kernel.org/patch/9923803/
Comment 1 Adam Mariš 2017-09-11 10:03:25 EDT 
Acknowledgments:

Name: ChunYu Wang (Red Hat)
Comment 2 Adam Mariš 2017-09-11 10:04:54 EDT 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1490423]
Comment 5 Vladis Dronov 2017-09-22 10:18:49 EDT 
Statement:

This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5 as the code with the flaw is not present in this product.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux  6, 7 and MRG-2. Future updates for the respective releases may address this issue.
Comment 7 Justin M. Forbes 2018-01-29 11:37:10 EST 
This was fixed for Fedora with the 4.13.5 stable updates
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