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Vulnerability CVE-2018-12439
Published: 2018-06-14 Modified: 2018-06-15
| Description: |
MatrixSSL through 3.9.5 Open 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. |
Type:
CWE-200 (Information Exposure)
CVSS2 => (AV:L/AC:M/Au:N/C:P/I:N/A:N)
| CVSS Base Score |
Impact Subscore |
Exploitability Subscore |
1.9/10 |
2.9/10 |
3.4/10 |
| Exploit range |
Attack complexity |
Authentication |
Local |
Medium |
No required |
| Confidentiality impact |
Integrity impact |
Availability impact |
Partial |
None |
None |
References: |
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/
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