CVE-2017-18221

CVSS V2 Medium 4.9 CVSS V3 Medium 5.5
Description
The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 allows local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls.
Overview
  • CVE ID
  • CVE-2017-18221
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2018-03-07T08:29:00
  • Last Modified Date
  • 2018-05-31T01:29:01
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.11.4
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 4.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.4 Release Notes Vendor Advisory
https://github.com/torvalds/linux/commit/70feee0e1ef331b22cc51f383d532a0d043fbdcc Patch Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=70feee0e1ef331b22cc51f383d532a0d043fbdcc Patch Vendor Advisory
http://www.securityfocus.com/bid/103321 Third Party Advisory VDB Entry
https://usn.ubuntu.com/3655-2/
https://usn.ubuntu.com/3655-1/
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2017-18221
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18221
History
Created Old Value New Value Data Type Notes
2022-05-10 18:43:03 Added to TrackCVE
2022-12-03 03:05:08 2018-03-07T08:29Z 2018-03-07T08:29:00 CVE Published Date updated
2022-12-03 03:05:08 2018-05-31T01:29:01 CVE Modified Date updated
2022-12-03 03:05:08 Modified Vulnerability Status updated