Multiple stack-based buffer overflows in elogd.c in elog before 2.5.7 r1558-4 allow attackers to cause a denial of service (application crash) and possibly execute code via long "revision attributes".
Buffer overflow in the decode_post function in ELOG before 2.5.7 allows remote attackers to execute arbitrary code via attachments with long file names.
ELOG before 2.5.7 allows remote attackers to bypass authentication and download a configuration file that contains a sensitive write password via a modified URL.
Multiple format string vulnerabilities in elogd.c in ELOG 2.6.2 and earlier allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via (1) an entry with an attachment whose name contains format string specifiers (el_submit function), and possibly other vectors in the (2) receive_config, (3) show_rss_feed, (4) show_elog_list, (5) show_logbook_node, and (6) server_loop functions.