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CVE-2011-4318

UnknownEPSS 1.32%

Last modified

CVE-2011-4318 is a vulnerability of currently unknown severity. Dovecot 2.0.x before 2.0.16, when ssl or starttls is enabled and hostname is used to define the proxy destination, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate for a different hostname.. EPSS estimates a 1.32% chance of exploitation in the next 30 days.

Description

Dovecot 2.0.x before 2.0.16, when ssl or starttls is enabled and hostname is used to define the proxy destination, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate for a different hostname.

Metrics

EPSS Probability
1.32%

67.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DovecotDovecot2.0.0
DovecotDovecot2.0.1
DovecotDovecot2.0.2
DovecotDovecot2.0.3
DovecotDovecot2.0.4
DovecotDovecot2.0.5
DovecotDovecot2.0.6
DovecotDovecot2.0.7
DovecotDovecot2.0.8
DovecotDovecot2.0.9
DovecotDovecot2.0.10
DovecotDovecot2.0.11
DovecotDovecot2.0.12
DovecotDovecot2.0.13
DovecotDovecot2.0.14
DovecotDovecot2.0.15

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-4318?
Dovecot 2.0.x before 2.0.16, when ssl or starttls is enabled and hostname is used to define the proxy destination, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate for a different hostname.
How severe is CVE-2011-4318?
Severity scoring for CVE-2011-4318 is pending analysis. The EPSS model estimates a 1.32% probability of exploitation in the next 30 days.
How do I fix CVE-2011-4318?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-4318?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST