Vulnerability Description
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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Aes-Gcm Project | Aes-Gcm | >= 0.10.0, < 0.10.3 |
| Fedoraproject | Fedora | 37 |
Related Weaknesses (CWE)
References
- https://docs.rs/aes-gcm/latest/src/aes_gcm/lib.rs.html#309Product
- https://github.com/RustCrypto/AEADs/security/advisories/GHSA-423w-p2w9-r7vqExploitVendor Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing List
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing List
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing List
- https://docs.rs/aes-gcm/latest/src/aes_gcm/lib.rs.html#309Product
- https://github.com/RustCrypto/AEADs/security/advisories/GHSA-423w-p2w9-r7vqExploitVendor Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing List
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing List
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing List
FAQ
What is CVE-2023-42811?
CVE-2023-42811 is a vulnerability with a CVSS score of 4.7 (MEDIUM). 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....
How severe is CVE-2023-42811?
CVE-2023-42811 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-42811?
Check the references section above for vendor advisories and patch information. Affected products include: Aes-Gcm Project Aes-Gcm, Fedoraproject Fedora.