CVE-2018-0735
high-risk
Published 2018-10-29
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).
Do I need to act?
~
7.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10
Medium
NETWORK
/ HIGH complexity
Affected Products (20)
References (30)
Third Party Advisory
http://www.securityfocus.com/bid/105750
Third Party Advisory
http://www.securitytracker.com/id/1041986
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3700
Third Party Advisory
https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20181105-0002/
Third Party Advisory
https://usn.ubuntu.com/3840-1/
Third Party Advisory
https://www.debian.org/security/2018/dsa-4348
Vendor Advisory
https://www.openssl.org/news/secadv/20181029.txt
Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.html
Third Party Advisory
http://www.securityfocus.com/bid/105750
Third Party Advisory
http://www.securitytracker.com/id/1041986
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3700
and 10 more references
52
/ 100
high-risk
Severity
18/34 · Moderate
Exploitability
10/34 · Low
Exposure
24/34 · High