ID de Prueba:	1.3.6.1.4.1.25623.1.0.870393
Categoría:	Red Hat Local Security Checks
Título:	RedHat Update for sendmail RHSA-2011:0262-01
Resumen:	The remote host is missing an update for the 'sendmail'; package(s) announced via the referenced advisory.
Descripción:	Summary: The remote host is missing an update for the 'sendmail' package(s) announced via the referenced advisory. Vulnerability Insight: Sendmail is a Mail Transport Agent (MTA) used to send mail between machines. A flaw was found in the way sendmail handled NUL characters in the CommonName field of X.509 certificates. An attacker able to get a carefully-crafted certificate signed by a trusted Certificate Authority could trick sendmail into accepting it by mistake, allowing the attacker to perform a man-in-the-middle attack or bypass intended client certificate authentication. (CVE-2009-4565) The CVE-2009-4565 issue only affected configurations using TLS with certificate verification and CommonName checking enabled, which is not a typical configuration. This update also fixes the following bugs: * Previously, sendmail did not correctly handle mail messages that had a long first header line. A line with more than 2048 characters was split, causing the part of the line exceeding the limit, as well as all of the following mail headers, to be incorrectly handled as the message body. (BZ#499450) * When an SMTP-sender is sending mail data to sendmail, it may spool that data to a file in the mail queue. It was found that, if the SMTP-sender stopped sending data and a timeout occurred, the file may have been left stalled in the mail queue, instead of being deleted. This update may not correct this issue for every situation and configuration. Refer to the Solution section for further information. (BZ#434645) * Previously, the sendmail macro MAXHOSTNAMELEN used 64 characters as the limit for the hostname length. However, in some cases, it was used against an FQDN length, which has a maximum length of 255 characters. With this update, the MAXHOSTNAMELEN limit has been changed to 255. (BZ#485380) All sendmail users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, sendmail will be restarted automatically. Affected Software/OS: sendmail on Red Hat Enterprise Linux AS version 4, Red Hat Enterprise Linux ES version 4, Red Hat Enterprise Linux WS version 4 Solution: Please Install the Updated Packages. CVSS Score: 7.5 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2009-4565 BugTraq ID: 37543 http://www.securityfocus.com/bid/37543 Debian Security Information: DSA-1985 (Google Search) http://www.debian.org/security/2010/dsa-1985 http://security.gentoo.org/glsa/glsa-201206-30.xml HPdes Security Advisory: HPSBUX02508 http://marc.info/?l=bugtraq&m=126953289726317&w=2 HPdes Security Advisory: SSRT100007 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10255 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11822 http://www.redhat.com/support/errata/RHSA-2011-0262.html http://secunia.com/advisories/37998 http://secunia.com/advisories/38314 http://secunia.com/advisories/38915 http://secunia.com/advisories/39088 http://secunia.com/advisories/40109 http://secunia.com/advisories/43366 http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021797.1-1 SuSE Security Announcement: SUSE-SR:2010:006 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html http://www.vupen.com/english/advisories/2009/3661 http://www.vupen.com/english/advisories/2010/0719 http://www.vupen.com/english/advisories/2010/1386 http://www.vupen.com/english/advisories/2011/0415
Copyright	Copyright (C) 2011 Greenbone AG

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