PT-2023-28598 · Aes-Gcm+1 · Aes-Gcm+1
Nandita-V
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Published
2023-09-22
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Updated
2024-06-15
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CVE-2023-42811
CVSS v3.1
4.7
Medium
| Vector | AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
aes-gcm versions 0.10.0 through 0.10.2
Description
The issue concerns the AES GCM implementation of
decrypt in place detached, where the decrypted ciphertext is exposed even if tag verification fails. This can enable Chosen Ciphertext Attacks (CCAs), potentially causing a catastrophic breakage of the cipher, including full plaintext recovery.Recommendations
For versions 0.10.0 through 0.10.2, update to version 0.10.3 or later to resolve the issue.
As a temporary workaround, consider restricting access to the
decrypt in place detached function until a patch is available.
Avoid using the decrypt in place* APIs in a way that accesses the buffer after decryption failure, as this may expose the decrypted ciphertext.Exploit
Fix
Improper Verification of Cryptographic Signature
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Weakness Enumeration
Related Identifiers
Affected Products
Suse
Aes-Gcm