Bug 1451399 (CVE-2017-8924) - CVE-2017-8924 kernel: Information leak in completion handler in edge_bulk_in_callback function
Summary: CVE-2017-8924 kernel: Information leak in completion handler in edge_bulk_in_...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2017-8924
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1457217
Blocks: 1451400
TreeView+ depends on / blocked
 
Reported: 2017-05-16 14:50 UTC by Andrej Nemec
Modified: 2021-02-17 02:08 UTC (History)
34 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
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.
Clone Of:
Environment:
Last Closed: 2017-05-31 11:30:47 UTC
Embargoed:


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Description Andrej Nemec 2017-05-16 14:50:32 UTC
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 11:13:39 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1457217]

Comment 4 Vladis Dronov 2017-05-31 11:30:47 UTC
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 17:26:31 UTC
This was fixed for Fedora with the 4.11 rebases.


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