---
cve: "CVE-2016-7056"
severity: "MEDIUM"
cvss: 5.5
epss: "59%"
vendor: "The OpenSSL Project"
kev: false
exploited: false
published: "2018-09-10 16:29:00"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T19:49:03+02:00"
---

# CVE-2016-7056

> 5.5 MEDIUM

## Beschreibung

A timing attack flaw was found in OpenSSL 1.0.1u and before that could allow a malicious user with local access to recover ECDSA P-256 private keys.

## CVSS-Vektor

```
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Referenzen

- <https://eprint.iacr.org/2016/1195>
- <https://access.redhat.com/errata/RHSA-2017:1801>
- <https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=8aed2a7548362e88e84a7feb795a3a97e8395008>
- <https://access.redhat.com/errata/RHSA-2017:1413>
- <https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/016_libcrypto.patch.sig>
- <http://www.securitytracker.com/id/1037575>
- <https://access.redhat.com/errata/RHSA-2017:1414>
- <https://seclists.org/oss-sec/2017/q1/52>
- <https://www.debian.org/security/2017/dsa-3773>
- <https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7056>
- <https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-7056.html>
- <http://www.securityfocus.com/bid/95375>
- <http://rhn.redhat.com/errata/RHSA-2017-1415.html>
- <https://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/033_libcrypto.patch.sig>
- <https://security-tracker.debian.org/tracker/CVE-2016-7056>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2016-7056) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_