high7.5
CVE-2017-12972
Nimbus JOSE+JWT missing overflow check
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | com.nimbusds:nimbus-jose-jwt | < 4.39 | 4.39 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Connect2id | Nimbus Jose\+Jwt | Versions 1.0, 1.1, 1.2, 1.3, 1.4, 1.5 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://bitbucket.org/connect2id/nimbus-jose-jwt/commits/0d2bd649ea386539220d4facfe1f65eb1dadb86c
- https://bitbucket.org/connect2id/nimbus-jose-jwt/issues/224/byte-to-bit-overflow-in-cbc
- https://bitbucket.org/connect2id/nimbus-jose-jwt/src/master/CHANGELOG.txt
- https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E
- https://github.com/advisories/GHSA-2qp9-wg27-9pcv
- https://nvd.nist.gov/vuln/detail/CVE-2017-12972
- https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe@%3Ccommits.druid.apache.org%3E