CVE-2021-37587 Information

Description

In Charm 0.43 any single user can decrypt DAC-MACS or MA-ABE-YJ14 data.

CVSS Vector

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

Reference

https://www2.hci.uni-hannover.de/papers/Tan2019.pdf https://github.com/JHUISI/charm/issues/276 https://jhuisi.github.io/charm/charm/schemes/abenc/abenc_dacmacs_yj14.html https://jhuisi.github.io/charm/_modules/abenc_maabe_yj14.html https://eprint.iacr.org/2020/460

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

6.5