CVE-2019-20934

CVSS V2 Medium 5.4 CVSS V3 Medium 5.3
Description
An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.
Overview
  • CVE ID
  • CVE-2019-20934
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-11-28T07:15:11
  • Last Modified Date
  • 2021-01-12T13:49:19
Weakness Enumerations
CWE URL
CWE-416 http://cwe.mitre.org/data/definitions/416.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.19 4.19.64
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.2 5.2.17
cpe:2.3:o:linux:linux_kernel:5.3:rc1:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:P/I:N/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 5.4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.4
  • Impact Score
  • 7.8
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • HIGH
  • Base Score
  • 5.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1
  • Impact Score
  • 4.2
References
Reference URL Reference Tags
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16d51a590a8ce3befb1308e0e7ab77f3b661af33 Patch Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.6 Vendor Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1913 Issue Tracking Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-20934
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20934
History
Created Old Value New Value Data Type Notes
2022-05-10 07:27:38 Added to TrackCVE
2022-12-05 17:23:38 2020-11-28T07:15Z 2020-11-28T07:15:11 CVE Published Date updated
2022-12-05 17:23:38 2021-01-12T13:49:19 CVE Modified Date updated
2022-12-05 17:23:38 Analyzed Vulnerability Status updated