National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-17863 Detail

Current Description

kernel/bpf/verifier.c in the Linux kernel 4.9.x through 4.9.71 does not check the relationship between pointer values and the BPF stack, which allows local users to cause a denial of service (integer overflow or invalid memory access) or possibly have unspecified other impact.

Source:  MITRE      Last Modified:  12/23/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-17863
Original release date:
12/27/2017
Last revised:
01/12/2018
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
7.8 High
Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (legend)
Impact Score:
5.9
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):
High
Integrity (I):
High
Availability (A):
High
CVSS Severity (version 2.0):
CVSS v2 Base Score:
7.2 HIGH
Vector:
(AV:L/AC:L/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore:
10.0
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://www.securityfocus.com/bid/102321 Third Party Advisory; VDB Entry External Source BID 102321
http://www.securitytracker.com/id/1040058 Third Party Advisory; VDB Entry External Source SECTRACK 1040058
https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-reject-out-of-bounds-stack-pointer-calculation.patch?h=stretch-security Patch External Source MISC https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-reject-out-of-bounds-stack-pointer-calculation.patch?h=stretch-security
https://usn.ubuntu.com/usn/usn-3523-2/ External Source UBUNTU USN-3523-2
https://www.debian.org/security/2017/dsa-4073 Third Party Advisory External Source DEBIAN DSA-4073
https://www.spinics.net/lists/stable/msg206985.html Issue Tracking; Patch External Source MISC https://www.spinics.net/lists/stable/msg206985.html

Technical Details

Vulnerability Type (View All)

  • Integer Overflow or Wraparound (CWE-190)

Change History 4 change records found - show changes