National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2017-15102 Detail

Current Description

The tower_probe function in drivers/usb/misc/legousbtower.c in the Linux kernel before 4.8.1 allows local users (who are physically proximate for inserting a crafted USB device) to gain privileges by leveraging a write-what-where condition that occurs after a race condition and a NULL pointer dereference.

Source:  MITRE
Description Last Modified:  11/15/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.3 MEDIUM
Vector: AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 0.4

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

CVSS v2.0 Severity and Metrics:

Base Score: 6.9 MEDIUM
Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.4

Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

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=2fae9e5a7babada041e2e161699ade2447a01989 Issue Tracking Patch Vendor Advisory
http://seclists.org/oss-sec/2017/q4/238 Issue Tracking Mailing List Third Party Advisory
http://www.securityfocus.com/bid/101790 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1505905 Issue Tracking Third Party Advisory
https://github.com/torvalds/linux/commit/2fae9e5a7babada041e2e161699ade2447a01989 Issue Tracking Patch Third Party Advisory
https://usn.ubuntu.com/3583-1/
https://usn.ubuntu.com/3583-2/

Technical Details

Vulnerability Type (View All)

  • NULL Pointer Dereference (CWE-476)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-15102
NVD Published Date:
11/15/2017
NVD Last Modified:
03/15/2018