aes-gcm is a pure Rust implementation of the AES-GCM. Starting in version 0.10.0 and prior to version 0.10.3, in the AES GCM implementation of decrypt_in_place_detached, the decrypted ciphertext (i.e. the correct plaintext) is exposed even if tag verification fails. If a program using the `aes-gcm` crate's `decrypt_in_place*` APIs accesses the buffer after decryption failure, it will contain a decryption of an unauthenticated input. Depending on the specific nature of the program this may enable Chosen Ciphertext Attacks (CCAs) which can cause a catastrophic breakage of the cipher including full plaintext recovery. Version 0.10.3 contains a fix for this issue.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | 1.8 | 3.6 |
| security-advisories@github.com | 4.7 | MEDIUM | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:N | 0.5 | 4.2 |
Products Affected
| Vendor | Product | Version |
|---|---|---|
| fedoraproject | fedora | 38 |
| aes-gcm_project | aes-gcm | * |
| fedoraproject | fedora | 37 |
| fedoraproject | fedora | 39 |