CVE-2020-16127

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.

CVSS v3 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://securitylab.github.com/advisories/GHSL-2020-187-accountsservice-drop-privs-DOS	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:freedesktop:accountsservice:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-11-11 04:15

Updated : 2024-02-04 21:23

NVD link : CVE-2020-16127

Mitre link : CVE-2020-16127

CVE.ORG link : CVE-2020-16127

JSON object : View

Products Affected

freedesktop

accountsservice

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

CWE-20

Improper Input Validation

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