Subject: bug#658: policykit-1: CVE-2021-4034

From: Dimitris <[email-masked]>
Date: Wed, 26 Jan 2022 12:24:28 +0200

Package: policykit-1
Version: 0.105-31+devuan1
Severity: critical
Tags: security
Justification: root security hole
X-Debbugs-Cc: [email-masked]

hey,

just a heads up on a very recent vulnerability found in polkit. a Local 
Privilege Escalation in polkit's pkexec (CVE-2021-4034). fixed in some 
versions in debian, probably devuan needs to address this too.

links :
https://www.qualys.com/2022/01/25/cve-2021-4034/pwnkit.txt
https://security-tracker.debian.org/tracker/CVE-2021-4034

thanks in advance,
d.

-- System Information:
Distributor ID:	Devuan
Description:	Devuan GNU/Linux 5 (daedalus/ceres)
Release:	5
Codename:	daedalus ceres
Architecture: x86_64

Kernel: Linux 5.16.2-xanmod1 (SMP w/4 CPU threads)
Kernel taint flags: TAINT_FIRMWARE_WORKAROUND
Locale: LANG=el_GR.UTF-8, LC_CTYPE=el_GR.UTF-8 (charmap=UTF-8), LANGUAGE 
not set
Shell: /bin/sh linked to /bin/dash
Init: runit (via /run/runit.stopit)
LSM: AppArmor: enabled

Versions of packages policykit-1 depends on:
ii  dbus                                                   1.12.20-3+devuan3
ii  libc6                                                  2.33-4
ii  libelogind0                                            246.10-3
ii  libexpat1                                              2.4.3-2
ii  libglib2.0-0                                           2.70.2-1
ii  libpam-elogind [logind]                                246.10-3
ii  libpam0g                                               1.4.0-11
ii  libpolkit-agent-1-0                                    0.105-31+devuan1
ii  libpolkit-gobject-1-0                                  0.105-31+devuan1
ii  libpolkit-gobject-elogind-1-0 [libpolkit-gobject-1-0]  0.105-31+devuan1

Versions of packages policykit-1 recommends:
ii  lxpolkit [polkit-1-auth-agent]           0.5.5-2+b1
ii  policykit-1-gnome [polkit-1-auth-agent]  0.105-7+b1

policykit-1 suggests no packages.

Versions of packages policykit-1 is related to:
ii  elogind                          246.10-3
ii  libpam-elogind [libpam-systemd]  246.10-3
pn  systemd                          <none>

-- no debconf information