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CVE PROGRAM SOURCE RECORD8.2 High

CVE-2026-3337

Timing Side-Channel in AES-CCM Tag Verification in AWS-LC

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

AWS AWS-LC

Default version status: unaffected

  • 1.21.0 to < 1.69.0affected

AWS AWS-LC-FIPS

Default version status: unaffected

  • 3.0.0 to < 3.2.0affected

References