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RUSTSEC-2026-0209
No affected components available
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.
Impact
Use of AES-GCM with AAD of length exceeding the prescribed maximum length degrades the authentication security of the GCM tag.
Mitigation
Starting from version 0.0.9 (published as libcrux-aes@v0.0.9),
limits on the length of the AAD input are enforced, so overlong AAD
inputs result in an error on encryption and decryption.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.
Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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