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Bug 1541876 - (CVE-2017-16911) CVE-2017-16911 kernel: vhci_cd driver in usbip/vhci_sysfs.c:port_show_vhci() discloses kernel memory addresses to local attackers
CVE-2017-16911 kernel: vhci_cd driver in usbip/vhci_sysfs.c:port_show_vhci() ...
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=20180131,reported=2...
: Security
Depends On: 1541877
Blocks: 1541878
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Reported: 2018-02-05 01:12 EST by Sam Fowler
Modified: 2018-02-19 11:20 EST (History)
46 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
The usbip/vhci_sysfs.c:port_show_vhci() in the vhci_hcd driver of the Linux kernel, before version 4.14.8 and 4.4.114, allows local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP.
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Environment:
Last Closed: 2018-02-16 07:38:46 EST
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CRM:
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RHEL 7.3 requirements from Atomic Host:
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Description Sam Fowler 2018-02-05 01:12:57 EST 
The usbip/vhci_sysfs.c:port_show_vhci() in the vhci_hcd driver of the Linux Kernel before version 4.14.8 and 4.4.114 allows local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP.

References:

https://secuniaresearch.flexerasoftware.com/secunia_research/2017-20/

https://www.spinics.net/lists/linux-usb/msg163477.html

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2f2d0088eb93db5c649d2a5e34a3800a8a935fc5
Comment 1 Sam Fowler 2018-02-05 01:14:09 EST 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1541877]
Comment 5 Eric Christensen 2018-02-19 11:20:48 EST 
Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, and 7, its real-time kernel, Red Hat Enterprise MRG 2, Red Hat Enterprise Linux 7 for ARM 64 and Red Hat Enterprise Linux 7 for Power 9 LE, as the code with the flaw is not enabled and is not built in the products listed.
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