Vulnerability in Openssl
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).
Vulnerability class: POODLE (CVE-2014-3566)
EPSS: 0.120 (95.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Openssl — versions Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o), Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h)
- Canonical Ubuntu_linux — versions 14.04, 16.04, 17.10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- openssl-security@openssl.org (mailing-list, x_refsource_MLIST)
- openssl-security@openssl.org (vendor-advisory, x_refsource_DEBIAN)
- openssl-security@openssl.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- openssl-security@openssl.org (vendor-advisory, x_refsource_GENTOO)
- openssl-security@openssl.org (x_refsource_UBUNTU, vendor-advisory)
- openssl-security@openssl.org (x_refsource_REDHAT, vendor-advisory)
- openssl-security@openssl.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- openssl-security@openssl.org (x_refsource_UBUNTU, vendor-advisory)
- openssl-security@openssl.org (x_refsource_REDHAT, vendor-advisory)
- openssl-security@openssl.org (vendor-advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2018-0737?
- CVE-2018-0737 is a medium-severity vulnerability in Openssl, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 5.9/10. Published 2018-04-16.
- How severe is CVE-2018-0737?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2018-0737 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.