CVE-2012-4435

Description

fwknop before 2.0.3 does not properly validate IP addresses, which allows remote authenticated users to cause a denial of service (server crash) via a long IP address.

Category

4.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.25% Top 25%
Vendor Advisory cipherdyne.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://exchange.xforce.ibmcloud.com/vulnerabilities/79568 vdb entry
http://www.openwall.com/lists/oss-security/2012/09/19/2 mailing list
http://www.openwall.com/lists/oss-security/2012/09/20/4 mailing list
http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html vendor advisory
http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=263fa01f2af1d336961df320f1c7a9ea84ddac9a
http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=f4c16bc47fc24a96b63105556b62d61c1ba7d799
http://www.openwall.com/lists/oss-security/2012/09/20/2 mailing list

Frequently Asked Questions

What is the severity of CVE-2012-4435?
CVE-2012-4435 has been scored as a medium severity vulnerability.
How to fix CVE-2012-4435?
To fix CVE-2012-4435, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-4435 being actively exploited in the wild?
It is possible that CVE-2012-4435 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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