In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
smb: client: fix next_buffer UAF and NextCommand bounds in compound PDUs<\/p>\n
Fix several related bounds checking and pointer lifecycle issues in
\nreceive_encrypted_standard()’s handling of compound encrypted frames:<\/p>\n
– Clear next_buffer after assigning it to server->bigbuf. A stale
\n next_buffer pointer can lead to a use-after-free on subsequent
\n error paths.
\n– Update pdu_length to the decrypted plaintext size (buf_size). Using
\n the pre-decryption length allows NextCommand to point into stale
\n ciphertext residue.
\n– Reject next_cmd values smaller than MID_HEADER_SIZE(server).
\n– Fix an integer overflow in the upper bound check by verifying
\n pdu_length – next_cmd < MID_HEADER_SIZE(server), ensuring the
\n trailing slice is large enough for a header.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
smb: client: fix next_buffer UAF and NextCommand bounds in compound PDUs<\/p>\n
Fix several related bounds checking and pointer lifecycle<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-33240","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/33240","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=33240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=33240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=33240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}