ID de Prueba:	1.3.6.1.4.1.25623.1.0.871285
Categoría:	Red Hat Local Security Checks
Título:	RedHat Update for shim RHSA-2014:1801-01
Resumen:	The remote host is missing an update for the 'shim'; package(s) announced via the referenced advisory.
Descripción:	Summary: The remote host is missing an update for the 'shim' package(s) announced via the referenced advisory. Vulnerability Insight: Shim is the initial UEFI bootloader that handles chaining to a trusted full bootloader under secure boot environments. A heap-based buffer overflow flaw was found the way shim parsed certain IPv6 addresses. If IPv6 network booting was enabled, a malicious server could supply a crafted IPv6 address that would cause shim to crash or, potentially, execute arbitrary code. (CVE-2014-3676) An out-of-bounds memory write flaw was found in the way shim processed certain Machine Owner Keys (MOKs). A local attacker could potentially use this flaw to execute arbitrary code on the system. (CVE-2014-3677) An out-of-bounds memory read flaw was found in the way shim parsed certain IPv6 packets. A specially crafted DHCPv6 packet could possibly cause shim to crash, preventing the system from booting if IPv6 booting was enabled. (CVE-2014-3675) Red Hat would like to thank the SUSE Security Team for reporting these issues. All shim users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect. Affected Software/OS: shim on Red Hat Enterprise Linux Server (v. 7) 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-2014-3675 BugTraq ID: 70407 http://www.securityfocus.com/bid/70407 http://www.openwall.com/lists/oss-security/2014/10/13/4 RedHat Security Advisories: RHSA-2014:1801 http://rhn.redhat.com/errata/RHSA-2014-1801.html XForce ISS Database: shim-cve20143675-dos(96981) https://exchange.xforce.ibmcloud.com/vulnerabilities/96981 Common Vulnerability Exposure (CVE) ID: CVE-2014-3676 BugTraq ID: 70409 http://www.securityfocus.com/bid/70409 XForce ISS Database: shim-cve20143676-bo(96988) https://exchange.xforce.ibmcloud.com/vulnerabilities/96988 Common Vulnerability Exposure (CVE) ID: CVE-2014-3677 BugTraq ID: 70410 http://www.securityfocus.com/bid/70410 XForce ISS Database: shim-cve20143677-code-exec(96989) https://exchange.xforce.ibmcloud.com/vulnerabilities/96989
Copyright	Copyright (C) 2014 Greenbone AG

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