National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-13179 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1835095 Exploit Issue Tracking Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1835096 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1726542 Issue Tracking Third Party Advisory
https://calamares.io/calamares-3.2.11-is-out/ Vendor Advisory
https://calamares.io/calamares-cve-2019/ Vendor Advisory
https://github.com/calamares/calamares/issues/1191 Exploit Issue Tracking Third Party Advisory
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/

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:calamares:calamares:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
3.2.10


Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-13179
NVD Published Date:
07/02/2019
NVD Last Modified:
08/12/2019