Vulnerability CVE-2019-13179
Published: 2019-07-02   Modified: 2019-07-03

Description:
Calamares versions 3.1 through 3.2.10 copies a LUKS encryption keyfile from /crypto_keyfile.bin (mode 0600 owned by root) to /boot within a globally readable initramfs image with insecure permissions, which allows this originally protected file to be read by any user, thereby disclosing decryption keys for LUKS containers created with Full Disk Encryption.

Type:

CWE-275

 (Permission Issues)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
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=1726542
https://calamares.io/calamares-3.2.11-is-out/
https://calamares.io/calamares-cve-2019/
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/
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