Is CVE-2016-7056 in the CISA KEV catalog?

No. CVE-2016-7056 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-7056?

CVE-2016-7056 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2016-7056?

CVE-2016-7056 has an EPSS score of 0.59% (44th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-7056?

Upgrade openssl on debian 11 to 1.0.2a-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2016-7056

MEDIUM

5.5

CVSS v3

NVD

Description

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.

CWE-385 CWE-320

How to fix

Remediation Available

opensslDebian

Fixed in:1.0.2a-1CVE-2016-7056

libssl1.0.0Ubuntu

Fixed in:1.0.1f-1ubuntu2.22USN-3181-1

Fixed in:1.0.2g-1ubuntu4.6USN-3181-1

opensslUbuntu

Fixed in:1.0.1f-1ubuntu2.22USN-3181-1

Fixed in:1.0.2g-1ubuntu4.6USN-3181-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.59%probability of exploitation in 30 days

44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Patch6

Third-Party Advisory9

Other references1

git.openssl.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.