CVE-2018-0737

The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o).

CVSS 3.0

5.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

12% chance of exploitation in the next 30 days; higher than 96% of CVEs (scores of 2026-10-25)

CWE

CWE-327

Published

2018-04-16

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• canonical:ubuntu_linux
• openssl:openssl

References

• http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
• http://www.securityfocus.com/bid/103766
• http://www.securitytracker.com/id/1040685
• https://access.redhat.com/errata/RHSA-2018:3221
• https://access.redhat.com/errata/RHSA-2018:3505

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