CVE-2017-12973

3.1 LOW

Published: August 20, 2017 Modified: May 13, 2026

Description

Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://bitbucket.org/connect2id/nimbus-jose-jwt/commits/6a29f10f723f406eb25555f55842c59a43a38912

Source: cve@mitre.org

Patch Third Party Advisory

https://bitbucket.org/connect2id/nimbus-jose-jwt/issues/223/aescbc-return-immediately-on-invalid-hmac

Source: cve@mitre.org

Third Party Advisory

https://bitbucket.org/connect2id/nimbus-jose-jwt/src/master/CHANGELOG.txt

Source: cve@mitre.org

Release Notes Third Party Advisory

https://bitbucket.org/connect2id/nimbus-jose-jwt/commits/6a29f10f723f406eb25555f55842c59a43a38912

Source: af854a3a-2127-422b-91ae-364da2661108

Patch Third Party Advisory

https://bitbucket.org/connect2id/nimbus-jose-jwt/issues/223/aescbc-return-immediately-on-invalid-hmac

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://bitbucket.org/connect2id/nimbus-jose-jwt/src/master/CHANGELOG.txt

Source: af854a3a-2127-422b-91ae-364da2661108

Release Notes Third Party Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score

3.1 / 10.0

EPSS (Exploit Probability)

0.6%

46th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-354

Affected Vendors

connect2id

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