CVEvulnerability

CVE-2026-3337

8.2 HIGH Published 2026-03-02 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-03-02
Last modified
2026-06-17
Assigner
ff89ba41-3aa1-4d27-914a-91399e9639e5
CVSS 4.0 (ff89ba41-3aa1-4d27-914a-91399e9639e5)
8.2 HIGH — CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 (ff89ba41-3aa1-4d27-914a-91399e9639e5)
5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Weaknesses
CWE-208

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 configurations

• amazon aws-lc-fips-sys (>= 0.13.0 < 0.13.12) • amazon aws-lc-sys (>= 0.14.0 < 0.38.0) • amazon aws libcrypto (>= 1.21.0 < 1.69.0) • amazon aws libcrypto (>= 3.0.0 < 3.2.0)

Related

Weakness · CWE (1)

  • CWE-208 Observable Timing Discrepancy weakness

References