CVE-2018-0734
MEDIUM severity · CVSS 5.9 · CWE-327
5.9CVSS MEDIUM
Summary
The OpenSSL DSA 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 1.1.1a (Affected 1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p).
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)12%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00030.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00056.htmlAdvisory
- http://www.securityfocus.com/bid/105758Advisory
- https://access.redhat.com/errata/RHSA-2019:2304Advisory
- https://access.redhat.com/errata/RHSA-2019:3700Advisory
- https://access.redhat.com/errata/RHSA-2019:3932Advisory
- https://access.redhat.com/errata/RHSA-2019:3933Advisory
- https://access.redhat.com/errata/RHSA-2019:3935Advisory