Information disclosure in Libsunec Project
CVE-2018-12438
The Elliptic Curve Cryptography library (aka sunec or libsunec) allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
Vulnerability class: Information Disclosure
EPSS: 0.005 (37.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Libsunec_project Libsunec
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Technical Description, Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-12438?
- CVE-2018-12438 is a medium-severity vulnerability in Libsunec Project, classified under Information Disclosure. CVSS score: 4.9/10. Published 2018-06-15.
- How severe is CVE-2018-12438?
- Medium severity. CVSS v3 base score is 4.9 out of 10.