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osvGoogleOSV:GHSA-2QP9-WG27-9PCV
HistoryMay 13, 2022 - 1:30 a.m.

Nimbus JOSE+JWT missing overflow check

2022-05-1301:30:32
Google
osv.dev
6

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.

0.002 Low

EPSS

Percentile

61.6%

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