VDB
ALPINE-CVE-2021-40528
ALPINE-CVE-2021-40528
PUBLISHED
CVSS 5.900000095367432 MEDIUM
The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.
Risk Scores
CVSS v3.1
5.900000095367432
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.11 | libgcrypt | 1.5.0-r0, 1.4.6-r2, 1.4.6-r1 |
| Alpine:v3.13 | libgcrypt | 1.5.3-r0, 1.6.0-r0, 1.6.1-r0 |
| Alpine:v3.12 | libgcrypt | 0, 1.8.8-r0, 1.8.5-r0 |
Timeline
- Sep 6, 2021 CVE Published
- Nov 19, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch