CVE-2018-12437
MEDIUM
4.9
CVSS Score
Published: June 15, 2018 at 02:00 AM UTC
Updated: June 17, 2026 at 01:37 AM UTC
2 products affected across 2 vendorsOp TeeLibtomcrypt
Using N/A by N/A?
Get instant alerts when new vulnerabilities affect N/A - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM4.9
Exploit prediction
EPSS 0.5%
Description
LibTomCrypt through 1.18.1 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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 1.18.1
v ≤ 3.5.0
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202007-53x_refsource_MISCExploitTechnical DescriptionThird Party Advisory
Source: [email protected]
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/CVSS
- Attack Vector
- PHYSICAL
- Complexity
- HIGH
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-200
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card