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 2.8 LOW
CVSS v2.0 2.1 LOW

2.8^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.3 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

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
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

21 Nov 2024, 05:06

Type	Values Removed	Values Added
CVSS	v2 : ~~2.1~~ v3 : ~~5.5~~	v2 : 2.1 v3 : 2.8
References	~~() https://securitylab.github.com/advisories/GHSL-2020-187-accountsservice-drop-privs-DOS - Exploit, Third Party Advisory~~	() https://securitylab.github.com/advisories/GHSL-2020-187-accountsservice-drop-privs-DOS - Exploit, Third Party Advisory

Information

Published : 2020-11-11 04:15

Updated : 2024-11-21 05:06

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-20

Improper Input Validation

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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