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osvGoogleOSV:CVE-2017-12972
HistoryAug 20, 2017 - 4:29 p.m.

CVE-2017-12972

2017-08-2016:29:00
Google
osv.dev
4

6.7 Medium

AI Score

Confidence

Low

0.002 Low

EPSS

Percentile

61.6%

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.

6.7 Medium

AI Score

Confidence

Low

0.002 Low

EPSS

Percentile

61.6%