Candidate: CVE-2022-0563
PublicDate: 2022-02-21 19:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0563
 https://bugzilla.redhat.com/show_bug.cgi?id=2053151
 https://lore.kernel.org/util-linux/20220214110609.msiwlm457ngoic6w@ws.net.home/T/#u
 https://github.com/util-linux/util-linux/commit/faa5a3a83ad0cb5e2c303edbfd8cd823c9d94c17
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.
Ubuntu-Description:
Notes:
 amurray| In Ubuntu chfn and chsh are not built from the util-linux source
  package but instead from the passwd package so are not affected by this
  vulnerability.
Mitigation:
Bugs:
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N [5.5 MEDIUM]


Patches_util-linux:
upstream_util-linux: needs-triage
trusty/esm_util-linux: not-affected (code not compiled)
esm-infra/xenial_util-linux: not-affected (code not compiled)
trusty_util-linux: ignored (out of standard support)
xenial_util-linux: ignored (out of standard support)
bionic_util-linux: not-affected (code not compiled)
focal_util-linux: not-affected (code not compiled)
impish_util-linux: not-affected (code not compiled)
devel_util-linux: not-affected (code not compiled)