CVE-2012-4435
medium
CVSS v3
—
CVSS v4 NEW
—
VIR risk
4.0
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 2.0.3-1 |
| debian | bullseye | fixed | 2.0.3-1 |
| debian | forky | fixed | 2.0.3-1 |
| debian | sid | fixed | 2.0.3-1 |
| debian | trixie | fixed | 2.0.3-1 |
References
- 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%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/2012/09/19/2
- 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
- https://security-tracker.debian.org/tracker/CVE-2012-4435
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.