DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in FetchHashKeyName.<\/p>\n
fetchrow_hashref uses the string pointer of the FetchHashKeyName attribute as the key name without stringifying it first. When FetchHashKeyName has been set to an integer (IV) or floating-point (NV) value, that pointer is invalid, so reading the key name triggers a segmentation fault.<\/p>\n
This can be triggered with the following code:<\/p>\n
my $dbh = DBI->connect( “dbi:ExampleP:”, “”, “”,
\n { RaiseError => 0, PrintError => 0 } );
\n $dbh->{FetchHashKeyName} = 42;<\/p>\n
my $sth = $dbh->prepare(“select mode, size, name from .”);
\n $sth->execute;
\n $sth->fetchrow_hashref;<\/p>\n","protected":false},"excerpt":{"rendered":"
DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in FetchHashKeyName.<\/p>\n
fetchrow_hashref uses the string pointer of the FetchHashKeyName attribute as the key name without <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-30263","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/30263","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=30263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=30263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=30263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}