In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
wifi: wilc1000: validate assoc response length before subtracting header<\/p>\n
wilc_parse_assoc_resp_info() computes the trailing IE length as<\/p>\n
\ties_len = buffer_len – sizeof(*res);<\/p>\n
without first checking that buffer_len is at least sizeof(struct
\nwilc_assoc_resp) (6 bytes). buffer_len is the length reported for a
\nreceived association response (host_int_parse_assoc_resp_info() passes
\nhif_drv->assoc_resp \/ assoc_resp_info_len straight in) and must be
\nvalidated before the driver accesses the fixed header.<\/p>\n
For a frame shorter than the 6-byte fixed header, the subtraction wraps.
\nFor a four-byte response the result is truncated to a u16 ies_len of
\n65534, so kmemdup() then attempts to copy 65534 bytes starting at
\nbuffer + sizeof(*res), beyond the valid association-response data
\n(CWE-125). A response shorter than four bytes can also cause an
\nout-of-bounds read of res->status_code at offsets 2 and 3.<\/p>\n
Reject frames too short to hold the fixed header before touching the
\nheader or computing ies_len. Also set the connection status to a failure
\non this path: the caller falls through to a
\n“conn_info->status == WLAN_STATUS_SUCCESS” check after the parser
\nreturns, so leaving the status untouched could let a malformed short
\nresponse be treated as a successful association.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
wifi: wilc1000: validate assoc response length before subtracting header<\/p>\n
wilc_parse_assoc_resp_info() computes the trailing IE len<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-5376","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/5376","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=5376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5376"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}