CVE-2012-2663

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.

7.5

CVSS

Severity: High

CVSS 2.0 •

EPSS 0.39%

Third-Party Advisory spinics.net Third-Party Advisory redhat.com

Affected: n/a n/a

References

Link	Tags
http://www.spinics.net/lists/netfilter-devel/msg21248.html	patch mailing list third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=826702	patch mitigation third party advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2012-2663?: CVE-2012-2663 has been scored as a high severity vulnerability.
How to fix CVE-2012-2663?: To fix CVE-2012-2663, 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-2012-2663 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2012-2663 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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