Vulnerability CVE-2017-14991
Published: 2017-10-03   Modified: 2017-10-04

Description:
The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel before 4.13.4 allows local users to obtain sensitive information from uninitialized kernel heap-memory locations via an SG_GET_REQUEST_TABLE ioctl call for /dev/sg0.

See advisories in our WLB2 database:
Topic
Author
Date
Low
Linux Kernel SG_GET_REQUEST_TABLE ioctl call for /dev/sg0 local infoleak
Alexander
10.10.2017

Type:

CWE-200

 (Information Exposure)

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 

 References:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e0097499839e0fe3af380410eababe5a47c4cf9
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.4
http://www.securityfocus.com/bid/101187
https://github.com/torvalds/linux/commit/3e0097499839e0fe3af380410eababe5a47c4cf9
https://usn.ubuntu.com/3754-1/
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