Bug 1451399 - (CVE-2017-8924) CVE-2017-8924 kernel: Information leak in completion handler in edge_bulk_in_callback function
CVE-2017-8924 kernel: Information leak in completion handler in edge_bulk_in_...
Status: CLOSED WONTFIX
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=20170306,reported=2...
: Security
Depends On: 1457217
Blocks: 1451400
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Reported: 2017-05-16 10:50 EDT by Andrej Nemec
Modified: 2018-01-29 12:26 EST (History)
34 users (show)

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Doc Text:
The edge_bulk_in_callback function in drivers/usb/serial/io_ti.c in the Linux kernel allows local users to obtain sensitive information (in the dmesg ringbuffer and syslog) from uninitialized kernel memory by using a crafted USB device (posing as an io_ti USB serial device) to trigger an integer underflow.
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Last Closed: 2017-05-31 07:30:47 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Andrej Nemec 2017-05-16 10:50:32 EDT
The edge_bulk_in_callback function in drivers/usb/serial/io_ti.c in the Linux kernel allows local users to obtain sensitive information (in the dmesg ringbuffer and syslog) from uninitialized kernel memory by using a crafted USB device (posing as an io_ti USB serial device) to trigger an integer underflow.

Upstream patch:

https://github.com/torvalds/linux/commit/654b404f2a222f918af9b0cd18ad469d0c941a8e
Comment 1 Vladis Dronov 2017-05-31 07:13:39 EDT
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1457217]
Comment 4 Vladis Dronov 2017-05-31 07:30:47 EDT
Statement:

Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates of the Red Hat products. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Comment 5 Justin M. Forbes 2018-01-29 12:26:31 EST
This was fixed for Fedora with the 4.11 rebases.

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