CVE-2026-3337

MEDIUM

5.9

Description

Observable timing discrepancy in AES-CCM decryption in AWS-LC allows an unauthenticated user to potentially determine authentication tag validity via timing analysis. The impacted implementations are through the EVP CIPHER API: EVP_aes_128_ccm, EVP_aes_192_ccm, and EVP_aes_256_ccm. Customers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0.

Details CVE

Score CVSS v3.15.9

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisNONE

Interaction utilisateurNONE

Publie3/2/2026

Derniere modification3/11/2026

Sourcenvd

Observations honeypot0

Produits affectes

amazon:aws-lc-fips-sysamazon:aws-lc-sysamazon:aws_libcrypto

Faiblesses (CWE)

CWE-208

References

https://aws.amazon.com/security/security-bulletins/2026-005-AWS/(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://github.com/aws/aws-lc/releases/tag/v1.69.0(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://github.com/aws/aws-lc/security/advisories/GHSA-frmv-5gcm-jwxh(ff89ba41-3aa1-4d27-914a-91399e9639e5)

Correlations IOC

Aucune correlation enregistree

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