Improper Input Validation The advisory has been revoked - it doesn't affect any version of package fwknop (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1510-FWKNOP-642691
- published22 Oct 2012
- disclosed22 Oct 2012
Introduced: 22 Oct 2012
CVE-2012-4435 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:15.10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream fwknop package and not the fwknop package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2012-4435
- https://security-tracker.debian.org/tracker/CVE-2012-4435
- http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html
- http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git;a=commitdiff;h=263fa01f2af1d336961df320f1c7a9ea84ddac9a
- http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git;a=commitdiff;h=f4c16bc47fc24a96b63105556b62d61c1ba7d799
- http://www.openwall.com/lists/oss-security/2012/09/19/2
- http://www.openwall.com/lists/oss-security/2012/09/20/2
- http://www.openwall.com/lists/oss-security/2012/09/20/4
- https://exchange.xforce.ibmcloud.com/vulnerabilities/79568
- 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