Timing attack against ECDSA signature generation
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 4.8%
exploitation probability
4.8%top 9% of all CVEs
observed exploitation
nono source reports it
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).
Affected products
OpenSSL · OpenSSLReferences
https://access.redhat.com/errata/RHSA-2019:3700https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56fb454d281a023b3f950d969693553d3f3ceea1https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=b1d6d55ece1c26fa2829e2b819b038d7b6d692b4https://lists.debian.org/debian-lts-announce/2018/11/msg00024.htmlhttps://nodejs.org/en/blog/vulnerability/november-2018-security-releases/https://security.netapp.com/advisory/ntap-20181105-0002/https://usn.ubuntu.com/3840-1/https://www.debian.org/security/2018/dsa-4348https://www.openssl.org/news/secadv/20181029.txthttps://www.oracle.com/security-alerts/cpujan2020.htmlhttps://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlhttps://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html