Test ID:	1.3.6.1.4.1.25623.1.0.871242
Category:	Red Hat Local Security Checks
Title:	RedHat Update for krb5 RHSA-2014:1245-01
Summary:	The remote host is missing an update for the 'krb5'; package(s) announced via the referenced advisory.
Description:	Summary: The remote host is missing an update for the 'krb5' package(s) announced via the referenced advisory. Vulnerability Insight: Kerberos is an authentication system which allows clients and services to authenticate to each other with the help of a trusted third party, a Kerberos Key Distribution Center (KDC). It was found that if a KDC served multiple realms, certain requests could cause the setup_server_realm() function to dereference a NULL pointer. A remote, unauthenticated attacker could use this flaw to crash the KDC using a specially crafted request. (CVE-2013-1418, CVE-2013-6800) A NULL pointer dereference flaw was found in the MIT Kerberos SPNEGO acceptor for continuation tokens. A remote, unauthenticated attacker could use this flaw to crash a GSSAPI-enabled server application. (CVE-2014-4344) A buffer over-read flaw was found in the way MIT Kerberos handled certain requests. A man-in-the-middle attacker with a valid Kerberos ticket who is able to inject packets into a client or server application's GSSAPI session could use this flaw to crash the application. (CVE-2014-4341) This update also fixes the following bugs: * Prior to this update, the libkrb5 library occasionally attempted to free already freed memory when encrypting credentials. As a consequence, the calling process terminated unexpectedly with a segmentation fault. With this update, libkrb5 frees memory correctly, which allows the credentials to be encrypted appropriately and thus prevents the mentioned crash. (BZ#1004632) * Previously, when the krb5 client library was waiting for a response from a server, the timeout variable in certain cases became a negative number. Consequently, the client could enter a loop while checking for responses. With this update, the client logic has been modified and the described error no longer occurs. (BZ#1089732) All krb5 users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the krb5kdc daemon will be restarted automatically. Affected Software/OS: krb5 on Red Hat Enterprise Linux (v. 5 server) Solution: Please Install the Updated Packages. CVSS Score: 7.8 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2013-1418 BugTraq ID: 63555 http://www.securityfocus.com/bid/63555 https://lists.debian.org/debian-lts-announce/2018/01/msg00040.html SuSE Security Announcement: openSUSE-SU-2013:1738 (Google Search) http://lists.opensuse.org/opensuse-updates/2013-11/msg00082.html SuSE Security Announcement: openSUSE-SU-2013:1751 (Google Search) http://lists.opensuse.org/opensuse-updates/2013-11/msg00086.html SuSE Security Announcement: openSUSE-SU-2013:1833 (Google Search) http://lists.opensuse.org/opensuse-updates/2013-12/msg00026.html Common Vulnerability Exposure (CVE) ID: CVE-2013-6800 BugTraq ID: 63770 http://www.securityfocus.com/bid/63770 Common Vulnerability Exposure (CVE) ID: CVE-2014-4341 BugTraq ID: 68909 http://www.securityfocus.com/bid/68909 Debian Security Information: DSA-3000 (Google Search) http://www.debian.org/security/2014/dsa-3000 http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136360.html http://security.gentoo.org/glsa/glsa-201412-53.xml http://www.mandriva.com/security/advisories?name=MDVSA-2014:165 RedHat Security Advisories: RHSA-2015:0439 http://rhn.redhat.com/errata/RHSA-2015-0439.html http://www.securitytracker.com/id/1030706 http://secunia.com/advisories/59102 http://secunia.com/advisories/60082 http://secunia.com/advisories/60448 XForce ISS Database: mit-kerberos-cve20144341-dos(94904) https://exchange.xforce.ibmcloud.com/vulnerabilities/94904 Common Vulnerability Exposure (CVE) ID: CVE-2014-4344 BugTraq ID: 69160 http://www.securityfocus.com/bid/69160 http://www.osvdb.org/109389 http://secunia.com/advisories/61051 XForce ISS Database: kerberos-cve20144344-dos(95210) https://exchange.xforce.ibmcloud.com/vulnerabilities/95210
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