VULNERABILITY INTELLIGENCE
CVE-2018-0735
CVSS score5.9 MEDIUM
EPSS probability4.72%
CISA KEVNot currently listed
Published2018-10-29
Last modified2026-10-08
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.1.1a (Affected 1.1.1).
Weakness classification
- CWE-327: Use of a Broken or Risky Cryptographic Algorithm
Primary references
- openssl-security@openssl.org — Third Party Advisory, VDB Entry
- openssl-security@openssl.org — Third Party Advisory, VDB Entry
- openssl-security@openssl.org — Third Party Advisory
- openssl-security@openssl.org
- openssl-security@openssl.org
- openssl-security@openssl.org — Mailing List, Third Party Advisory
- openssl-security@openssl.org — Third Party Advisory
- openssl-security@openssl.org — Third Party Advisory
- openssl-security@openssl.org — Third Party Advisory
- openssl-security@openssl.org — Third Party Advisory
- openssl-security@openssl.org — Vendor Advisory
- openssl-security@openssl.org — Third Party Advisory