CVE-2017-12972
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductConnect2id Nimbus Jose\+jwt
PublishedAug 20, 2017
First seenAug 20, 2017
How to fix
Update
- com.nimbusds:nimbus-jose-jwt4.39 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| connect2id nimbus_jose\+jwt | 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.9.1, 1.10, 1.11, 1.12, 2.0, 2.0.1, 2.1, 2.1.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 2.10, 2.10.1, 2.11.0, 2.12.0, 2.13.0, 2.13.1, 2.14, 2.15, 2.15.1, 2.15.2, 2.16, 2.17, 2.17.1, 2.17.2, 2.18, 2.18.1, 2.18.2, 2.19, 2.19.1, 2.20, 2.21, 2.22, 2.22.1, 2.23, 2.24, 2.25, 2.26, 2.26.1, 3.0, 3.1, 3.1.1, 3.1.2, 3.2, 3.2.1, 3.2.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.8.1, 3.8.2, 3.9, 3.9.1, 3.9.2, 3.10, 4.0, 4.0.1, 4.1, 4.1.1, 4.2, 4.3, 4.3.1, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 4.10, 4.11, 4.11.1, 4.11.2, 4.12, 4.13, 4.13.1, 4.14, 4.15, 4.15.1, 4.16, 4.16.1, 4.16.2, 4.17, 4.18, 4.19, 4.20, 4.21, 4.22, 4.23, 4.24, 4.25, 4.26, 4.26.1, 4.27, 4.27.1, 4.28, 4.29, 4.30, 4.31, 4.31.1, 4.32, 4.33, 4.34, 4.34.1, 4.34.2, 4.35, 4.36.1, 4.37, 4.37.1, 4.38 | — |
| com.nimbusds:nimbus-jose-jwtMaven | v < 4.39 | 4.39 |
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