U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

NOTICE

NIST is currently working to establish a consortium to address challenges in the NVD program and develop improved tools and methods. You will temporarily see delays in analysis efforts during this transition. We apologize for the inconvenience and ask for your patience as we work to improve the NVD program.

CVE-2017-8797 Detail

Description

The NFSv4 server in the Linux kernel before 4.11.3 does not properly validate the layout type when processing the NFSv4 pNFS GETDEVICEINFO or LAYOUTGET operand in a UDP packet from a remote attacker. This type value is uninitialized upon encountering certain error conditions. This value is used as an array index for dereferencing, which leads to an OOPS and eventually a DoS of knfsd and a soft-lockup of the whole system.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b550a32e60a4941994b437a8d662432a486235a5 Patch  Vendor Advisory 
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f961e3f2acae94b727380c0b74e2d3954d0edf79 Patch  Vendor Advisory 
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.3 Release Notes  Vendor Advisory 
http://www.openwall.com/lists/oss-security/2017/06/27/5 Mailing List  Patch  VDB Entry 
http://www.securityfocus.com/bid/99298 Third Party Advisory  VDB Entry 
http://www.securitytracker.com/id/1038790 Broken Link  Third Party Advisory  VDB Entry 
https://access.redhat.com/errata/RHSA-2017:1842 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2017:2077 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2017:2437 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2017:2669 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=1466329 Issue Tracking  Third Party Advisory  VDB Entry 
https://github.com/torvalds/linux/commit/b550a32e60a4941994b437a8d662432a486235a5 Patch  Third Party Advisory 
https://github.com/torvalds/linux/commit/f961e3f2acae94b727380c0b74e2d3954d0edf79 Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-129 Improper Validation of Array Index cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-8797
NVD Published Date:
07/02/2017
NVD Last Modified:
02/02/2023
Source:
MITRE