In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop<\/p>\n
The ah, hbh and rt matches check that the fixed extension header is
\npresent, then use the header length field to derive the advertised
\nextension header length for matching.<\/p>\n
For the ah match, add the missing advertised-length check. For hbh
\nand rt, update the existing advertised-length checks. In all three
\ncases, set hotdrop to true before returning false when the advertised
\nextension header length exceeds the available skb data.<\/p>\n
Returning false treats the packet as a rule mismatch. Set hotdrop to
\ntrue and drop malformed packets so they cannot bypass rules intended
\nto drop packets with these IPv6 extension headers.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop<\/p>\n
The ah, hbh and rt matches check that the fixed extension <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-6979","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/6979","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6979"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6979"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}