TCP firewalls could be circumvented by sending a SYN Packets with other flags (like e.g. RST flag) set, which was not correctly discarded by the Linux TCP stack after firewalling.
[
{
"product": "kernel",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "before Linux kernel 2.4.20"
}
]
}
]
www.openwall.com/lists/oss-security/2012/02/03/7
www.openwall.com/lists/oss-security/2012/05/29/8
www.openwall.com/lists/oss-security/2012/05/30/11
www.openwall.com/lists/oss-security/2012/05/30/12
www.openwall.com/lists/oss-security/2012/05/30/13
www.openwall.com/lists/oss-security/2012/05/30/2
www.openwall.com/lists/oss-security/2012/05/30/4
www.openwall.com/lists/oss-security/2012/05/30/8
www.openwall.com/lists/oss-security/2012/05/30/9
www.openwall.com/lists/oss-security/2012/05/31/3
www.openwall.com/lists/oss-security/2014/02/12/8
bugzilla.suse.com/show_bug.cgi?id=744994%2C
security.netapp.com/advisory/ntap-20210727-0003/
www.kb.cert.org/vuls/id/464113
www.kb.cert.org/vuls/id/464113%2C
www.openwall.com/lists/oss-security/2012/02/03/7