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CVE-2011-1720

UnknownEPSS 21.65%

Last modified

CVE-2011-1720 is a vulnerability of currently unknown severity. The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server handle after client authentication fails, which allows remote attackers to cause a denial of service (heap memory corruption and daemon crash) or possibly execute arbitrary code via an invalid AUTH command with one method followed by an AUTH command with a different method.. EPSS estimates a 21.65% chance of exploitation in the next 30 days.

Description

The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server handle after client authentication fails, which allows remote attackers to cause a denial of service (heap memory corruption and daemon crash) or possibly execute arbitrary code via an invalid AUTH command with one method followed by an AUTH command with a different method.

Metrics

EPSS Probability
21.65%

97.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PostfixPostfix2.0.0
PostfixPostfix2.0.1
PostfixPostfix2.0.2
PostfixPostfix2.0.3
PostfixPostfix2.0.4
PostfixPostfix2.0.5
PostfixPostfix2.0.6
PostfixPostfix2.0.7
PostfixPostfix2.0.8
PostfixPostfix2.0.9
PostfixPostfix2.0.10
PostfixPostfix2.0.11
PostfixPostfix2.0.12
PostfixPostfix2.0.13
PostfixPostfix2.0.14
PostfixPostfix2.0.15
PostfixPostfix2.0.16
PostfixPostfix2.0.17
PostfixPostfix2.0.18
PostfixPostfix2.0.19
PostfixPostfix2.1.0
PostfixPostfix2.1.1
PostfixPostfix2.1.2
PostfixPostfix2.1.3
PostfixPostfix2.1.4
PostfixPostfix2.1.5
PostfixPostfix2.1.6
PostfixPostfix2.2.0
PostfixPostfix2.2.1
PostfixPostfix2.2.2
PostfixPostfix2.2.3
PostfixPostfix2.2.4
PostfixPostfix2.2.5
PostfixPostfix2.2.6
PostfixPostfix2.2.7
PostfixPostfix2.2.8
PostfixPostfix2.2.9
PostfixPostfix2.2.10
PostfixPostfix2.2.11
PostfixPostfix2.2.12
PostfixPostfix2.3
PostfixPostfix2.3.0
PostfixPostfix2.3.1
PostfixPostfix2.3.2
PostfixPostfix2.3.3
PostfixPostfix2.3.4
PostfixPostfix2.3.5
PostfixPostfix2.3.6
PostfixPostfix2.3.7
PostfixPostfix2.3.8

Showing 50 of 109 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-1720?
The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server handle after client authentication fails, which allows remote attackers to cause a denial of service (heap memory corruption and daemon crash) or possibly execute arbitrary code via an invalid AUTH command with one method followed by an AUTH command with a different method.
How severe is CVE-2011-1720?
Severity scoring for CVE-2011-1720 is pending analysis. The EPSS model estimates a 21.65% probability of exploitation in the next 30 days.
How do I fix CVE-2011-1720?
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.

How Strix Helps

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Source: NVD / NIST