Vulnerability CVE-2019-13178
Published: 2019-07-02   Modified: 2019-07-03

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.

Type:

CWE-362

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Calamares -> Calamares 

 References:
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/
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