CVE-2017-8797

CVSS V2 High 7.8 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2017-8797
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2017-07-02T17:29:00
  • Last Modified Date
  • 2023-02-03T02:02:19
Weakness Enumerations
CWE URL
CWE-129 http://cwe.mitre.org/data/definitions/129.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.11.2
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.8
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/torvalds/linux/commit/f961e3f2acae94b727380c0b74e2d3954d0edf79 Patch Third Party Advisory
https://github.com/torvalds/linux/commit/b550a32e60a4941994b437a8d662432a486235a5 Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1466329 Issue Tracking Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2017/06/27/5 Mailing List Patch VDB Entry
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.3 Release Notes Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f961e3f2acae94b727380c0b74e2d3954d0edf79 Exploit Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b550a32e60a4941994b437a8d662432a486235a5 Exploit Vendor Advisory
http://www.securityfocus.com/bid/99298 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038790 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2669
https://access.redhat.com/errata/RHSA-2017:2437
https://access.redhat.com/errata/RHSA-2017:2077
https://access.redhat.com/errata/RHSA-2017:1842
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2017-8797
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8797
History
Created Old Value New Value Data Type Notes
2022-05-10 18:51:26 Added to TrackCVE
2022-12-02 18:13:38 2017-07-02T17:29Z 2017-07-02T17:29:00 CVE Published Date updated
2022-12-02 18:13:38 2018-01-05T02:31:54 CVE Modified Date updated
2022-12-02 18:13:38 Undergoing Analysis Vulnerability Status updated
2023-02-03 05:06:22 2023-02-03T02:02:19 CVE Modified Date updated
2023-02-03 05:06:22 Undergoing Analysis Analyzed Vulnerability Status updated