In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
cifs: validate DFS referral string offsets<\/p>\n
parse_dfs_referrals() validates that the response header and referral
\narray fit in the received buffer, but each referral also contains string
\noffsets supplied by the server.<\/p>\n
Those offsets are used to compute the DfsPath and NetworkAddress string
\npointers without checking whether they still point inside the response
\nbuffer. A malformed referral can therefore make the computed pointer
\nexceed the end of the buffer. The resulting negative max_len is then
\npassed to cifs_strndup_from_utf16(), and the non-Unicode path forwards it
\nto kstrndup() as a size_t, allowing strnlen() to read out of bounds.<\/p>\n
Validate each string offset before deriving the string pointer.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
cifs: validate DFS referral string offsets<\/p>\n
parse_dfs_referrals() validates that the response header and referral
\narray fit in the <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-6943","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/6943","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=6943"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6943"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}