VDB
ALPINE-CVE-2021-33560
ALPINE-CVE-2021-33560
PUBLISHED
CVSS 7.5 HIGH
Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.19 | libgcrypt | 1.9.3-r1, 1.9.3-r1, 1.9.3-r0 |
| Alpine:v3.18 | libgcrypt | 1.4.3-r0, 1.7.3-r0, 1.7.2-r0 |
| Alpine:v3.12 | libgcrypt | 1.8.5-r0, 1.8.4-r2, 1.8.4-r1 |
| Alpine:v3.13 | libgcrypt | 1.4.6-r1, 1.4.3-r0, 1.4.4-r0 |
| Alpine:v3.21 | libgcrypt | 1.8.4-r0, 1.7.5-r0, 1.4.5-r2 |
| Alpine:v3.23 | libgcrypt | 1.6.1-r1, 1.5.0-r0, 1.8.2-r0 |
| Alpine:v3.16 | libgcrypt | 1.6.1-r1, 1.6.1-r0, 1.6.0-r0 |
| Alpine:v3.15 | libgcrypt | 1.5.3-r0, 0, 1.4.3-r0 |
| Alpine:v3.20 | libgcrypt | 1.4.5-r2, 1.6.1-r1, 1.6.2-r0 |
| Alpine:v3.11 | libgcrypt | 1.6.3-r0, 1.6.4-r0, 1.6.5-r0 |
| Alpine:v3.14 | libgcrypt | 1.6.2-r0, 0, 1.9.3-r0 |
| Alpine:v3.22 | libgcrypt | 1.6.2-r0, 1.4.6-r1, 1.4.6-r0 |
| Alpine:v3.17 | libgcrypt | 1.4.3-r0, 1.6.2-r0, 1.6.3-r0 |
Timeline
- Jun 8, 2021 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch