In Nimbus JOSE+JWT before 4.39, there is no integer-overflow check when converting length values from bytes to bits, which allows attackers to conduct HMAC bypass attacks by shifting Additional Authenticated Data (AAD) and ciphertext so that different plaintext is obtained for the same HMAC.
Metrics
No CVSS v4.0
No CVSS v3.1
Attack Vector Network
Attack Complexity Low
Privileges Required None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
User Interaction None
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
AV:N/AC:L/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
---|---|
Connect2id |
|
Configuration 1 [-]
|
No data.
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2017-08-20T16:00:00
Updated: 2024-08-05T18:51:07.371Z
Reserved: 2017-08-20T00:00:00
Link: CVE-2017-12972
Vulnrichment
No data.
NVD
Status : Modified
Published: 2017-08-20T16:29:00.237
Modified: 2024-11-21T03:10:33.007
Link: CVE-2017-12972
Redhat
No data.