CVE-2020-16127

CVSS V2 Low 2.1 CVSS V3 Medium 5.5
Description
An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, would perform unbounded read operations on user-controlled ~/.pam_environment files, allowing an infinite loop if /dev/zero is symlinked to this location.
Overview
  • CVE ID
  • CVE-2020-16127
  • Assigner
  • security@ubuntu.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-11-11T04:15:12
  • Last Modified Date
  • 2020-11-24T19:50:07
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:freedesktop:accountsservice:*:*:*:*:*:*:*:* 1 OR 0.6.55
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 2.1
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/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://securitylab.github.com/advisories/GHSL-2020-187-accountsservice-drop-privs-DOS Exploit Third Party Advisory
History
Created Old Value New Value Data Type Notes
2022-05-10 16:18:59 Added to TrackCVE
2022-12-05 16:24:51 2020-11-11T04:15Z 2020-11-11T04:15:12 CVE Published Date updated
2022-12-05 16:24:51 2020-11-24T19:50:07 CVE Modified Date updated
2022-12-05 16:24:51 Analyzed Vulnerability Status updated