In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
selinux: reject a class permission count below its inherited common<\/p>\n
security_get_permissions() maps an inherited common’s permissions into
\nan array sized by the class’s own permissions.nprim, but class_read()
\ntakes that nprim verbatim from the policy image and never checks that it
\ncovers the common. A class that inherits a common of N permissions while
\ndeclaring a smaller nprim is accepted, and on load the common’s
\npermissions are written past the class-sized array — an out-of-bounds
\nheap write.<\/p>\n
Reject a class whose permission count is below its inherited common’s.
\nWell-formed policies, where the class count already includes the
\ninherited permissions, are unaffected.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
selinux: reject a class permission count below its inherited common<\/p>\n
security_get_permissions() maps an inherited common’s permissi<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-3409","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/3409","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=3409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}