CVE-2012-2663 Security feature bypass in n/a
Remote attackers can bypass firewall restrictions by sending crafted TCP SYN+FIN packets that evade SYN rule matching in iptables.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-2663?
CVE-2012-2663 is a high-severity vulnerability in n/a, published on 15 Feb 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
extensions/libxt_tcp.c in iptables through 1.4.21 does not match TCP SYN+FIN packets in --syn rules, which might allow remote attackers to bypass intended firewall restrictions via crafted packets. NOTE: the CVE-2012-6638 fix makes this issue less relevant.
Which versions are affected by CVE-2012-2663?
It affects 1 product.
Products include Netfilter Iptables.
How do I fix CVE-2012-2663?
Apply the vendor's patch.
Is CVE-2012-2663 being exploited?
There is no known exploitation of CVE-2012-2663 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2012-2663, ECHO-ee0d-a49e-a573, GHSA-g725-p8m6-82j4, UBUNTU-CVE-2012-2663.