Is CVE-2018-12384 in the CISA KEV catalog?

No. CVE-2018-12384 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-12384?

CVE-2018-12384 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2018-12384?

CVE-2018-12384 has an EPSS score of 1.50% (71th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-12384?

Upgrade nss on debian 11 to 2:3.39-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-12384

MEDIUMEPSS 71th pctl

5.9

CVSS v3

NVD

Description

When handling a SSLv2-compatible ClientHello request, the server doesn't generate a new random value but sends an all-zero value instead. This results in full malleability of the ClientHello for SSLv2 used for TLS 1.2 in all versions prior to NSS 3.39. This does not impact TLS 1.3.

CWE-335

How to fix

Remediation Available

nssDebian

Fixed in:2:3.39-1CVE-2018-12384

libnss3Ubuntu

Fixed in:2:3.28.4-0ubuntu0.14.04.4USN-3850-1

Fixed in:2:3.28.4-0ubuntu0.16.04.4USN-3850-1

Fixed in:2:3.35-2ubuntu2.1USN-3850-1

nssUbuntu

Fixed in:2:3.28.4-0ubuntu0.14.04.4USN-3850-1

Fixed in:2:3.28.4-0ubuntu0.16.04.4USN-3850-1

Fixed in:2:3.35-2ubuntu2.1USN-3850-1

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 VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.50%probability of exploitation in 30 days

71stpercentile

Elevated risk: more likely to be exploited than 71% of all known CVEs.

References

Vendor Advisory1

bugzilla.mozilla.org

Other references1

oracle.com

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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.