ID de Prueba:	1.3.6.1.4.1.25623.1.0.871591
Categoría:	Red Hat Local Security Checks
Título:	RedHat Update for krb5 RHSA-2016:0532-01
Resumen:	The remote host is missing an update for the 'krb5'; package(s) announced via the referenced advisory.
Descripción:	Summary: The remote host is missing an update for the 'krb5' package(s) announced via the referenced advisory. Vulnerability Insight: Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos key distribution center (KDC). Security Fix(es): * A memory leak flaw was found in the krb5_unparse_name() function of the MIT Kerberos kadmind service. An authenticated attacker could repeatedly send specially crafted requests to the server, which could cause the server to consume large amounts of memory resources, ultimately leading to a denial of service due to memory exhaustion. (CVE-2015-8631) * An out-of-bounds read flaw was found in the kadmind service of MIT Kerberos. An authenticated attacker could send a maliciously crafted message to force kadmind to read beyond the end of allocated memory, and write the memory contents to the KDC database if the attacker has write permission, leading to information disclosure. (CVE-2015-8629) * A NULL pointer dereference flaw was found in the procedure used by the MIT Kerberos kadmind service to store policies: the kadm5_create_principal_3() and kadm5_modify_principal() function did not ensure that a policy was given when KADM5_POLICY was set. An authenticated attacker with permissions to modify the database could use this flaw to add or modify a principal with a policy set to NULL, causing the kadmind service to crash. (CVE-2015-8630) The CVE-2015-8631 issue was discovered by Simo Sorce of Red Hat. Affected Software/OS: krb5 on Red Hat Enterprise Linux Server (v. 7) Solution: Please Install the Updated Packages. CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2015-8629 BugTraq ID: 82801 http://www.securityfocus.com/bid/82801 Debian Security Information: DSA-3466 (Google Search) http://www.debian.org/security/2016/dsa-3466 RedHat Security Advisories: RHSA-2016:0493 http://rhn.redhat.com/errata/RHSA-2016-0493.html RedHat Security Advisories: RHSA-2016:0532 http://rhn.redhat.com/errata/RHSA-2016-0532.html http://www.securitytracker.com/id/1034914 SuSE Security Announcement: openSUSE-SU-2016:0406 (Google Search) http://lists.opensuse.org/opensuse-updates/2016-02/msg00059.html SuSE Security Announcement: openSUSE-SU-2016:0501 (Google Search) http://lists.opensuse.org/opensuse-updates/2016-02/msg00110.html Common Vulnerability Exposure (CVE) ID: CVE-2015-8630 http://www.securitytracker.com/id/1034915 Common Vulnerability Exposure (CVE) ID: CVE-2015-8631 http://www.securitytracker.com/id/1034916
Copyright	Copyright (C) 2016 Greenbone AG

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