National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-12193 Detail

Current Description

The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations.

Source:  MITRE      Last Modified:  11/22/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-12193
Original release date:
11/22/2017
Last revised:
01/26/2018
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
5.5 Medium
Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (legend)
Impact Score:
3.6
Exploitability Score:
1.8
CVSS Version 3 Metrics:
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High
CVSS Severity (version 2.0):
CVSS v2 Base Score:
4.9 MEDIUM
Vector:
(AV:L/AC:L/Au:N/C:N/I:N/A:C) (legend)
Impact Subscore:
6.9
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ea6789980fdaa610d7eb63602c746bf6ec70cd2b Issue Tracking; Patch External Source CONFIRM http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ea6789980fdaa610d7eb63602c746bf6ec70cd2b
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11 Issue Tracking External Source CONFIRM http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11
http://www.securityfocus.com/bid/101678 Third Party Advisory; VDB Entry External Source BID 101678
https://access.redhat.com/errata/RHSA-2018:0151 External Source REDHAT RHSA-2018:0151
https://bugzilla.redhat.com/show_bug.cgi?id=1501215 Issue Tracking External Source CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=1501215
https://github.com/torvalds/linux/commit/ea6789980fdaa610d7eb63602c746bf6ec70cd2b Patch; Vendor Advisory External Source CONFIRM https://github.com/torvalds/linux/commit/ea6789980fdaa610d7eb63602c746bf6ec70cd2b

Technical Details

Vulnerability Type (View All)

  • NULL Pointer Dereference (CWE-476)

Change History 3 change records found - show changes