Vulnerability CVE-2017-8924
Published: 2017-05-12

Description:
The edge_bulk_in_callback function in drivers/usb/serial/io_ti.c in the Linux kernel before 4.10.4 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.

Type:

CWE-191

 (Integer Underflow (Wrap or Wraparound))

CVSS2 => (AV:L/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Linux -> Linux kernel 
Debian -> Debian linux 

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=654b404f2a222f918af9b0cd18ad469d0c941a8e
http://www.debian.org/security/2017/dsa-3886
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.4
http://www.securityfocus.com/bid/98451
https://github.com/torvalds/linux/commit/654b404f2a222f918af9b0cd18ad469d0c941a8e
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