CVE-2018-6829
High
Description
cipher/elgamal.c in Libgcrypt through 1.8.2, when used to encrypt messages directly, improperly encodes plaintexts, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack). The Decisional Diffie-Hellman (DDH) assumption does not hold for Libgcrypt's ElGamal implementation.
SeverityHigh
CVSS7.5
Exploit probability—
ProductGnupg Libgcrypt
PublishedFeb 7, 2018
First seenFeb 7, 2018
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnupg libgcrypt | v ≤ 1.8.2 | — |
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