VulnerabilityModified
CVE-2018-0735
The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack.
MEDIUM 5.9EPSS 4.72%
Does this matter?
Lower severity and a low EPSS score (4.72%). Track it; it rarely justifies an emergency change on its own.
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).
- CVSS 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 4.72% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-327
- Affected
- openssl/openssl · canonical/ubuntu linux · debian/debian linux · nodejs/node.js · netapp/cn1610 firmware · netapp/cloud backup · netapp/element software · netapp/oncommand unified manager · netapp/santricity smi-s provider · netapp/smi-s provider · netapp/snapdrive · netapp/steelstore · oracle/api gateway · oracle/application server · oracle/enterprise manager base platform · oracle/enterprise manager ops center · oracle/mysql · oracle/peoplesoft enterprise peopletools · oracle/primavera p6 enterprise project portfolio management · oracle/secure global desktop · +2 more
- Source
- openssl-security@openssl.org
EPSS 4.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/105750Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041986Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:3700Third Party Advisory
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56fb454d281a023b3f950d969693553d3f3ceea1
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=b1d6d55ece1c26fa2829e2b819b038d7b6d692b4
- https://lists.debian.org/debian-lts-announce/2018/11/msg00024.htmlMailing List, 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-4348Third Party Advisory
- https://www.openssl.org/news/secadv/20181029.txtVendor Advisory
- https://www.oracle.com/security-alerts/cpujan2020.htmlThird Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.htmlPatch, Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/105750Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041986Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:3700Third Party Advisory
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56fb454d281a023b3f950d969693553d3f3ceea1
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=b1d6d55ece1c26fa2829e2b819b038d7b6d692b4
- https://lists.debian.org/debian-lts-announce/2018/11/msg00024.htmlMailing List, 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-4348Third Party Advisory
- https://www.openssl.org/news/secadv/20181029.txtVendor Advisory
- https://www.oracle.com/security-alerts/cpujan2020.htmlThird Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.htmlPatch, Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.