National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-8924 Detail

Current 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.

Source:  MITRE
Description Last Modified:  05/12/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 4.6 MEDIUM
Vector: AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 0.9


Attack Vector (AV): Physical
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 2.1 LOW
Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=654b404f2a222f918af9b0cd18ad469d0c941a8e Issue Tracking Patch Third Party Advisory
http://www.debian.org/security/2017/dsa-3886
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.4 Release Notes Vendor Advisory
http://www.securityfocus.com/bid/98451
https://github.com/torvalds/linux/commit/654b404f2a222f918af9b0cd18ad469d0c941a8e Issue Tracking Patch Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Integer Underflow (Wrap or Wraparound) (CWE-191)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-8924
NVD Published Date:
05/12/2017
NVD Last Modified:
11/03/2017