CVE-2023-42811 (GCVE-0-2023-42811)

Vulnerability from cvelistv5 – Published: 2023-09-22 15:19 – Updated: 2025-06-18 14:22
VLAI?
Title
AEADs/aes-gcm: Plaintext exposed in decrypt_in_place_detached even on tag verification failure
Summary
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.
Severity ?
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:N
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
RustCrypto AEADs Affected: >= 0.10.0, < 0.10.3
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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