CVE-2019-13178 Information

Description

modules/luksbootkeyfile/main.py in Calamares versions 3.1 through 3.2.10 has a race condition between the time when the LUKS encryption keyfile is created and when secure permissions are set.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00017.html http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00021.html https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1835095 https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1835096 https://bugzilla.redhat.com/show_bug.cgi?id=1726565 https://calamares.io/calamares-3.2.11-is-out/ https://calamares.io/calamares-cve-2019/ https://github.com/calamares/calamares/issues/1190 https://github.com/calamares/calamares/issues/1191 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Q57BOTBA2J5U4GVKUP7N2PD5H7B3BVUU/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R2ZDQRGBGRVRW5LPJWKUNS3M66LZ3KYC/ https://www.pavelkogan.com/2014/05/23/luks-full-disk-encryption/ https://www.pavelkogan.com/2015/01/25/linux-mint-encryption/

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1