Unrated severityNVD Advisory· Published Feb 15, 2014· Updated Jun 16, 2026
CVE-2012-2663
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.
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Affected products
2Patches
Vulnerability mechanics
References
2- www.spinics.net/lists/netfilter-devel/msg21248.htmlnvdPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingMitigationPatchThird Party Advisory
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