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.
References (1)
Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://securitylab.github.com/advisories/GHSL-2020-187-accountsservice-drop-privs-DOS
Scores
CVSS v3
2.8
EPSS
0.0017
EPSS Percentile
38.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Details
CWE
CWE-20
CWE-835
Status
published
Products (1)
freedesktop/accountsservice
< 0.6.55
Published
Nov 11, 2020
Tracked Since
Feb 18, 2026