CVE-2021-29444
See a problem?- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-29444
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29444.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-29444
- Aliases
- Withdrawn
- 2024-05-15T05:32:37.974714Z
- Published
- 2021-04-16T22:15:13Z
- Modified
- 2023-11-29T08:45:40.741434Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
jose-browser-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the AESCBCHMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed
JWEDecryptionFailedwould be thrown. But a possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). A patch was released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are>=3.11.4. Users should upgrade to^3.11.4. - References
Affected packages
Git / github.com/panva/jose
Affected ranges
- Type
- GIT
- Repo
- https://github.com/panva/jose
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed