CVE-2018-12435
- Source
- https://cve.org/CVERecord?id=CVE-2018-12435
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-12435.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2018-12435
- Downstream
- Related
- Published
- 2018-06-15T02:29:00.377Z
- Modified
- 2026-02-25T01:13:21.832916Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Botan 2.5.0 through 2.6.0 before 2.7.0 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP, related to dsa/dsa.cpp, ecgroup/ecgroup.cpp, and ecdsa/ecdsa.cpp. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
- References
-
- https://botan.randombit.net/security.html
- https://github.com/randombit/botan/commit/48fc8df51d99f9d8ba251219367b3d629cc848e3
- https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/
- https://github.com/randombit/botan/commit/48fc8df51d99f9d8ba251219367b3d629cc848e3
- https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/