CVE-2022-0563 Information

Description

A flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support. The Readline library uses an \INPUTRC\ environment variable to get a path to the library config file. When the library cannot parse the specified file it prints an error message containing data from the file. This flaw allows an unprivileged user to read root-owned files potentially leading to privilege escalation. This flaw affects util-linux versions prior to 2.37.4.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Reference

https://lore.kernel.org/util-linux/20220214110609.msiwlm457ngoic6w@ws.net.home/T/#u https://security.netapp.com/advisory/ntap-20220331-0002/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.5