Düşük CVSS 3.7
CVE-2026-77696: Openssl: güvenlik açığı
Açıklama (NVD)
Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. Impact summary: An attacker able to measure SM2 signing times may learn information about the per-signature secret nonce, which over many signatures can, via a lattice / Hidden Number Problem attack, lead to recovery of the private key. CWE: CWE-208: Observable Timing Discrepancy Description: SM2 signature generation computes the signature value using variable-time BIGNUM operations on the secret nonce and the private key, so the time taken to produce an SM2 signature depends on these secret values, forming a timing side-channel. Applications performing SM2 signature generation are affected on all platforms. FIPS Impact: no SM2 is not a FIPS algorithm.
Özet bilgiler
- Ürün
- Openssl Openssl
- CVSS v3.1
- 3.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - EPSS
- %0,40 (yüzdelik 34)
- CWE
- CWE-208
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| openssl-openssl | 1.1.1 | — | 1.1.1zj |
| openssl-openssl | 3.0.0 | — | 3.0.23 |
| openssl-openssl | 3.4.0 | — | 3.4.8 |
| openssl-openssl | 3.5.0 | — | 3.5.9 |
| openssl-openssl | 3.6.0 | — | 3.6.5 |
| openssl-openssl | 4.0.0 | — | 4.0.3 |