CVE-2020-16127

PoC —

CVSS 3.1

5.5 medium

EPSS

<1%p35

Published

Nov 11, 2020 (Nov 11, 2020)

Modified

Jun 17, 2026

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.

Vendors: freedesktop
Products: accountsservice
Weakness: CWE-20, CWE-835
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.4%)

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