c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free \/ double-free in c-ares’ query-completion handling. The same flaw \u2014 a query’s callback being invoked while the query is still linked in the channel’s internal lookup structures \u2014 is present at multiple points in the resend\/finish path (timeout handling, response handling, and query dispatch). If the query, or for ares_getaddrinfo() the owning host_query, is freed as a side effect of that callback, it is then accessed and\/or freed a second time. This vulnerability is fixed in ver 1.34.7.<\/p>\n","protected":false},"excerpt":{"rendered":"
c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free \/ double-free in c-ares’ query-completion handling. The same flaw \u2014 a query’s callback being invoked while th<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-3578","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/3578","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=3578"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3578"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3578"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}