In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
handshake: Require admin permission for DONE command<\/p>\n
ACCEPT and DONE are the two downcalls of the handshake genl
\nfamily, both intended for use by the trusted handshake agent
\n(tlshd). ACCEPT already requires GENL_ADMIN_PERM; DONE has
\nno privilege check at all.<\/p>\n
The fd-lookup in handshake_nl_done_doit() only confirms that
\nsome pending handshake request exists for the supplied sockfd;
\nit does not authenticate the sender. An unprivileged process
\nthat guesses or observes a valid sockfd can therefore submit
\na DONE with HANDSHAKE_A_DONE_STATUS == 0, leaving the kernel
\nconsumer to proceed as if the handshake succeeded. A non-zero
\nstatus on a forged DONE tears down a legitimate in-flight
\nhandshake before tlshd can report its real result.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
handshake: Require admin permission for DONE command<\/p>\n
ACCEPT and DONE are the two downcalls of the handshake genl
\nfamily, both inte<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-7206","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/7206","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=7206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}