Information disclosure in Cryptlib
CVE-2018-12433
cryptlib through 3.4.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a key, the attacker needs access to either the local machine or a different virtual machine on the same physical host. NOTE: the vendor does not include side-channel attacks within its threat model
Vulnerability class: Information Disclosure
EPSS: 0.003 (27.2th 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
- Cryptlib
- 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-2018-12433?
- CVE-2018-12433 is a medium-severity vulnerability in Cryptlib, classified under Information Disclosure. CVSS score: 4.9/10. Published 2018-06-15.
- How severe is CVE-2018-12433?
- Medium severity. CVSS v3 base score is 4.9 out of 10.