Date: Mon, 18 Feb 2013 12:29:14 -0500 (EST) From: Jan Lieskovsky <jlieskov@...hat.com> To: oss-security@...ts.openwall.com Cc: "Steven M. Christey" <coley@...us.mitre.org>, Arthur de Jong <arthur@...hurdejong.org>, Garth Mollett <garth.mollett@...registry.com.au>, Nalin Dahyabhai <nalin@...hat.com>, Jakub Hrozek <jhrozek@...hat.com> Subject: CVE-2013-0288 nss-pam-ldapd: FD_SET array index error, leading to stack-based buffer overflow Hello Steve, vendors, an array index error, leading to stack-based buffer overflow flaw was found in the way nss-pam-ldapd, a PAM and nsswitch module which uses directory servers, performed management of file descriptors when performing file descriptors activity wait. An attacker could use this flaw to cause processes with a large number of opened file descriptors, that performed name lookups to crash or, potentially, execute arbitrary code with the privileges of the user running the process. Upstream advisory (with patches and further details)  http://arthurdejong.org/nss-pam-ldapd/CVE-2013-0288 References:  https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-0288 Credit: This issue was found by Garth Mollett. Red Hat would like to thank Garth Mollett for reporting this issue, and Arthur de Jong of nss-pam-ldapd upstream for help with coordination of this advisory. Thank you && Regards, Jan. -- Jan iankko Lieskovsky / Red Hat Security Response Team
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