RUSTSEC-2026-0209None▾ SunlitAES-GCM did not enforce limits on AAD length
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
NIST Special Publication 800-38D specifies that the bit length of the
AAD shall not exceed 2^64 - 1 bits. The implementation of AES-GCM in
libcrux-aesgcm neither enforced this limit for encryption nor for
decryption.
Use of AES-GCM with AAD of length exceeding the prescribed maximum length degrades the authentication security of the GCM tag.
Starting from version 0.0.9 (published as [email protected]),
limits on the length of the AAD input are enforced, so overlong AAD
inputs result in an error on encryption and decryption.
libcrux-aesgcm >= 0.0.0-0Refer to the advisory for the patched release.
Connected by shared product, vendor, weakness, or advisory.