Is CVE-2019-3814 in the CISA KEV catalog?

No. CVE-2019-3814 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-3814?

CVE-2019-3814 has a CVSS v3 base score of 7.7 (HIGH).

What is the EPSS score for CVE-2019-3814?

CVE-2019-3814 has an EPSS score of 2.46% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-3814?

Upgrade dovecot on debian 11 to 1:2.3.4.1-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2019-3814

HIGHEPSS 82th pctl

7.7

CVSS v3

NVD

Description

It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users.

CWE-295Improper Certificate Validation

How to fix

Remediation Available

dovecotDebian

Fixed in:1:2.3.4.1-1CVE-2019-3814

dovecotUbuntu

Fixed in:1:2.2.9-1ubuntu2.5USN-3881-1

Fixed in:1:2.2.22-1ubuntu2.9USN-3881-1

Fixed in:1:2.2.33.2-1ubuntu4.2USN-3881-1

dovecot-coreUbuntu

Fixed in:1:2.2.9-1ubuntu2.5USN-3881-1

Fixed in:1:2.2.22-1ubuntu2.9USN-3881-1

Fixed in:1:2.2.33.2-1ubuntu4.2USN-3881-1

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 RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

2.46%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Exploit1

dovecot.org

Third-Party Advisory2

Other references4

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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.