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CVE
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CVE-2021-37587Date: (C)2021-08-02   (M)2023-12-22


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

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 6.5CVSS Score : 4.0
Exploit Score: 2.8Exploit Score: 8.0
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: LOWAuthentication: SINGLE
User Interaction: NONEConfidentiality: PARTIAL
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: HIGHAvailability: NONE
Integrity: NONE 
Availability: NONE 
  
Reference:
https://eprint.iacr.org/2020/460
https://github.com/JHUISI/charm/issues/276
https://jhuisi.github.io/charm/_modules/abenc_maabe_yj14.html
https://jhuisi.github.io/charm/charm/schemes/abenc/abenc_dacmacs_yj14.html
https://www2.hci.uni-hannover.de/papers/Tan2019.pdf

CWE    1
CWE-327

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