In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
ipvs: clear IPv4 options after rebasing tunnel ICMP errors<\/p>\n
ip_vs_in_icmp() rebases an skb from the outer ICMP packet to the
\nquoted original request before passing it to icmp_send(). However,
\nIPCB(skb)->opt still describes the outer IPv4 header.<\/p>\n
A timestamp option in the outer header can therefore leave an offset
\nthat points into the quoted transport header after the rebase.
\n__ip_options_echo() treats a byte at that stale location as the option
\nlength and copies it into the fixed-size option storage on the
\n__icmp_send() stack, causing a stack out-of-bounds write.<\/p>\n
Clear the stale option metadata after resetting the network header.
\nKeep the remaining control block fields, including the ingress
\ninterface used by the ICMP response path.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
ipvs: clear IPv4 options after rebasing tunnel ICMP errors<\/p>\n
ip_vs_in_icmp() rebases an skb from the outer ICMP packet to the
\nquoted<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-11255","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/11255","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=11255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}