Test ID:	1.3.6.1.4.1.25623.1.0.870695
Category:	Red Hat Local Security Checks
Title:	RedHat Update for Red Hat Enterprise Linux 6 kernel RHSA-2011:1530-03
Summary:	The remote host is missing an update for the 'Red Hat Enterprise Linux 6 kernel'; package(s) announced via the referenced advisory.
Description:	Summary: The remote host is missing an update for the 'Red Hat Enterprise Linux 6 kernel' package(s) announced via the referenced advisory. Vulnerability Insight: The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues: * The proc file system could allow a local, unprivileged user to obtain sensitive information or possibly cause integrity issues. (CVE-2011-1020, Moderate) * Non-member VLAN (virtual LAN) packet handling for interfaces in promiscuous mode and also using the be2net driver could allow an attacker on the local network to cause a denial of service. (CVE-2011-3347, Moderate) * A flaw was found in the Linux kernel in the way splitting two extents in ext4_ext_convert_to_initialized() worked. A local, unprivileged user with access to mount and unmount ext4 file systems could use this flaw to cause a denial of service. (CVE-2011-3638, Moderate) * A NULL pointer dereference flaw was found in the way the Linux kernel's key management facility handled user-defined key types. A local, unprivileged user could use the keyctl utility to cause a denial of service. (CVE-2011-4110, Moderate) Red Hat would like to thank Kees Cook for reporting CVE-2011-1020, Somnath Kotur for reporting CVE-2011-3347, and Zheng Liu for reporting CVE-2011-3638. This update also fixes several hundred bugs and adds enhancements. Refer to the Red Hat Enterprise Linux 6.2 Release Notes for information on the most significant of these changes, and the Technical Notes for further information, both linked to in the References. All Red Hat Enterprise Linux 6 users are advised to install these updated packages, which correct these issues, and fix the bugs and add the enhancements noted in the Red Hat Enterprise Linux 6.2 Release Notes and Technical Notes. The system must be rebooted for this update to take effect. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at the linked references. To install kernel packages manually, use 'rpm -ivh [package]'. Do not use 'rpm -Uvh' as that will remove the running kernel binaries from your system. You may use 'rpm -e' to remove old kernels after determining that the new kernel .. Description truncated, please see the referenced URL(s) for more information. Affected Software/OS: Red Hat Enterprise Linux 6 kernel on Red Hat Enterprise Linux Desktop (v. 6), Red Hat Enterprise Linux Server (v. 6), Red Hat Enterprise Linux Workstation (v. 6) Solution: Please Install the Updated Packages. CVSS Score: 4.6 CVSS Vector: AV:A/AC:H/Au:N/C:N/I:N/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2011-1020 20110122 Proc filesystem and SUID-Binaries http://seclists.org/fulldisclosure/2011/Jan/421 43496 http://secunia.com/advisories/43496 46567 http://www.securityfocus.com/bid/46567 8107 http://securityreason.com/securityalert/8107 [linux-kernel] 20110207 Re: [SECURITY] /proc/$pid/ leaks contents across setuid exec https://lkml.org/lkml/2011/2/7/414 https://lkml.org/lkml/2011/2/7/474 [linux-kernel] 20110207 [SECURITY] /proc/$pid/ leaks contents across setuid exec https://lkml.org/lkml/2011/2/7/368 [linux-kernel] 20110208 Re: [SECURITY] /proc/$pid/ leaks contents across setuid exec https://lkml.org/lkml/2011/2/7/404 https://lkml.org/lkml/2011/2/7/466 [linux-kernel] 20110209 Re: [SECURITY] /proc/$pid/ leaks contents across setuid exec https://lkml.org/lkml/2011/2/10/21 https://lkml.org/lkml/2011/2/9/417 [oss-security] 20110224 CVE request: kernel: /proc/$pid/ leaks contents across setuid exec http://openwall.com/lists/oss-security/2011/02/24/18 [oss-security] 20110225 Re: CVE request: kernel: /proc/$pid/ leaks contents across setuid exec http://openwall.com/lists/oss-security/2011/02/25/2 http://www.halfdog.net/Security/2011/SuidBinariesAndProcInterface/ kernel-procpid-security-bypass(65693) https://exchange.xforce.ibmcloud.com/vulnerabilities/65693 Common Vulnerability Exposure (CVE) ID: CVE-2011-3347 https://bugzilla.redhat.com/show_bug.cgi?id=736425 https://oss.oracle.com/git/?p=redpatch.git%3Ba=commit%3Bh=fadca7bdc43b02f518585d9547019966415cadfd Common Vulnerability Exposure (CVE) ID: CVE-2011-3638 [oss-security] 20111024 Re: CVE Request -- kernel: ext4: ext4_ext_insert_extent() kernel oops http://www.openwall.com/lists/oss-security/2011/10/24/2 http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3 https://bugzilla.redhat.com/show_bug.cgi?id=747942 https://github.com/torvalds/linux/commit/667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3 Common Vulnerability Exposure (CVE) ID: CVE-2011-4110 47754 http://secunia.com/advisories/47754 50755 http://www.securityfocus.com/bid/50755 HPSBGN02970 http://marc.info/?l=bugtraq&m=139447903326211&w=2 USN-1324-1 http://www.ubuntu.com/usn/USN-1324-1 USN-1328-1 http://www.ubuntu.com/usn/USN-1328-1 USN-1344-1 http://www.ubuntu.com/usn/USN-1344-1 [linux-kernel] 20111115 [PATCH] KEYS: Fix a NULL pointer deref in the user-defined key type https://lkml.org/lkml/2011/11/15/363 [oss-security] 20111121 CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type http://www.openwall.com/lists/oss-security/2011/11/21/19 [oss-security] 20111121 Re: CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type http://www.openwall.com/lists/oss-security/2011/11/22/6 [oss-security] 20111122 Re: CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type http://www.openwall.com/lists/oss-security/2011/11/22/5 https://bugzilla.redhat.com/show_bug.cgi?id=751297
Copyright	Copyright (C) 2012 Greenbone AG

This is only one of 145615 vulnerability tests in our test suite. Find out more about running a complete security audit. To run a free test of this vulnerability against your system, register below.