{"vuid":"VU#582923","idnumber":"582923","name":"webalizer vulnerable to buffer overflow when performing reverse DNS lookups","keywords":["webalizer","buffer overflow","reverse DNS lookup"],"overview":"A remotely exploitable buffer overflow exists in all versions of webalizer prior to version 2.01-10.","clean_desc":"webalizer is a web server log file analysis program. webalizer has the ability do resolve hostnames as part of the process of generating reports. A buffer overflow exists in the code that resolves the hostnames. As a result, an attacker controlled DNS server can send an unusually large DNS response message and corrupt the data produced by the program and/or gain root privileges. Note that webalizer would have to be actively performing a DNS lookup in order for this vulnerability to be exploited.","impact":"An attacker controlled DNS server can send an unusually large DNS response message and corrupt the data produced by the program and/or gain root privileges.","resolution":"Apply a vendor patch. If a patch is not available, upgrade to version 2.01-10 or later.","workarounds":"","sysaffected":"","thanks":"Thanks to Spybreak for reporting this vulnerability.","author":"This document was written by Ian A Finlay.","public":["http://www.mrunix.net/webalizer/","http://www.mrunix.net/webalizer/news.html","http://www.securityfocus.com/bid/4504","http://online.securityfocus.com/archive/1/267551","http://marc.theaimsgroup.com/?l=bugtraq&m=101888467527673&w=2","http://www.iss.net/security_center/static/8837.php"],"cveids":["CVE-2002-0180"],"certadvisory":"","uscerttechnicalalert":null,"datecreated":"2002-04-15T21:11:16Z","publicdate":"2002-04-15T00:00:00Z","datefirstpublished":"2002-10-28T17:42:32Z","dateupdated":"2002-10-28T17:45:21Z","revision":8,"vrda_d1_directreport":"","vrda_d1_population":"","vrda_d1_impact":"","cam_widelyknown":"15","cam_exploitation":"0","cam_internetinfrastructure":"5","cam_population":"10","cam_impact":"19","cam_easeofexploitation":"13","cam_attackeraccessrequired":"18","cam_scorecurrent":"16.6725","cam_scorecurrentwidelyknown":"20.840625","cam_scorecurrentwidelyknownexploited":"37.513125","ipprotocol":"","cvss_accessvector":"","cvss_accesscomplexity":"","cvss_authentication":null,"cvss_confidentialityimpact":"","cvss_integrityimpact":"","cvss_availabilityimpact":"","cvss_exploitablity":null,"cvss_remediationlevel":"","cvss_reportconfidence":"","cvss_collateraldamagepotential":"","cvss_targetdistribution":"","cvss_securityrequirementscr":"","cvss_securityrequirementsir":"","cvss_securityrequirementsar":"","cvss_basescore":"","cvss_basevector":"","cvss_temporalscore":"","cvss_environmentalscore":"","cvss_environmentalvector":"","metric":16.6725,"vulnote":null}