Is CVE-2018-5407 in the CISA KEV catalog?

No. CVE-2018-5407 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-5407?

CVE-2018-5407 has a CVSS v3 base score of 4.7 (MEDIUM).

What is the EPSS score for CVE-2018-5407?

CVE-2018-5407 has an EPSS score of 3.42% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-5407?

Upgrade openssl on debian 11 to 1.1.1~~pre9-1 or later. Fixes are available for 8 affected products.

CVE & CISA-KEV Catalog

CVE-2018-5407

MEDIUMEPSS 87th pctl

4.7

CVSS v3

NVD

Description

Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'.

CWE-200Information Exposure CWE-203

How to fix

Remediation Available

opensslDebian

Fixed in:1.1.1~~pre9-1CVE-2018-5407

libssl1.0.0Ubuntu

Fixed in:1.0.1f-1ubuntu2.27USN-3840-1

Fixed in:1.0.2g-1ubuntu4.14USN-3840-1

Fixed in:1.0.2n-1ubuntu5.2USN-3840-1

libssl1.1Ubuntu

Fixed in:1.1.0g-2ubuntu4.3USN-3840-1

opensslUbuntu

Fixed in:1.0.1f-1ubuntu2.27USN-3840-1

Fixed in:1.0.2g-1ubuntu4.14USN-3840-1

Fixed in:1.1.0g-2ubuntu4.3USN-3840-1

openssl1.0Ubuntu

Fixed in:1.0.2n-1ubuntu5.2USN-3840-1

Node.jsWindows application

Affected:6.14.4Fixed in:6.14.4Node.js Foundation

Affected:10.0.0 10.9.0Fixed in:10.9.0Node.js Foundation

Affected:8.0.0 8.11.4Fixed in:8.11.4Node.js Foundation

Node.js (LTS)Windows application

Affected:6.14.4Fixed in:6.14.4Node.js Foundation

Affected:10.0.0 10.9.0Fixed in:10.9.0Node.js Foundation

Affected:8.0.0 8.11.4Fixed in:8.11.4Node.js Foundation

Oracle VirtualBoxWindows application

Affected:6.0.0Fixed in:6.0.0Oracle and/or its affiliates

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 ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

3.42%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

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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.