CVE-2017-8797

7.5 HIGH
Published: July 02, 2017 Modified: May 13, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b550a32e60a4941994b437a8d662432a486235a5
Source: cve@mitre.org
Patch Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f961e3f2acae94b727380c0b74e2d3954d0edf79
Source: cve@mitre.org
Patch Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.3
Source: cve@mitre.org
Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2017/06/27/5
Source: cve@mitre.org
Mailing List Patch VDB Entry
http://www.securityfocus.com/bid/99298
Source: cve@mitre.org
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038790
Source: cve@mitre.org
Broken Link Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:1842
Source: cve@mitre.org
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2077
Source: cve@mitre.org
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2437
Source: cve@mitre.org
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2669
Source: cve@mitre.org
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1466329
Source: cve@mitre.org
Issue Tracking Third Party Advisory VDB Entry
https://github.com/torvalds/linux/commit/b550a32e60a4941994b437a8d662432a486235a5
Source: cve@mitre.org
Patch Third Party Advisory
https://github.com/torvalds/linux/commit/f961e3f2acae94b727380c0b74e2d3954d0edf79
Source: cve@mitre.org
Patch Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b550a32e60a4941994b437a8d662432a486235a5
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f961e3f2acae94b727380c0b74e2d3954d0edf79
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.3
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2017/06/27/5
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch VDB Entry
http://www.securityfocus.com/bid/99298
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038790
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:1842
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2077
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2437
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2669
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1466329
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Third Party Advisory VDB Entry
https://github.com/torvalds/linux/commit/b550a32e60a4941994b437a8d662432a486235a5
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory
https://github.com/torvalds/linux/commit/f961e3f2acae94b727380c0b74e2d3954d0edf79
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory

26 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
8.7%
94th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-129

Affected Vendors

linux

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