CVE-2020-13845 Information

Description

Sylabs Singularity 3.0 through 3.5 has Improper Validation of an Integrity Check Value. Image integrity is not validated when an ECL policy is enforced. The fingerprint required by the ECL is compared against the signature object descriptor(s) in the SIF file rather than to a cryptographically validated signature.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00046.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00059.html http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00053.html https://github.com/hpcng/singularity/security/advisories/GHSA-pmfr-63c2-jr5c https://medium.com/sylabs

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5