Test ID:	1.3.6.1.4.1.25623.1.0.870681
Category:	Red Hat Local Security Checks
Title:	RedHat Update for kernel RHSA-2011:0928-01
Summary:	The remote host is missing an update for the 'kernel'; package(s) announced via the referenced advisory.
Description:	Summary: The remote host is missing an update for the '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: * It was found that the receive hook in the ipip_init() function in the ipip module, and in the ipgre_init() function in the ip_gre module, could be called before network namespaces setup is complete. If packets were received at the time the ipip or ip_gre module was still being loaded into the kernel, it could cause a denial of service. (CVE-2011-1767, CVE-2011-1768, Moderate) * It was found that an mmap() call with the MAP_PRIVATE flag on '/dev/zero' would create transparent hugepages and trigger a certain robustness check. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2011-2479, Moderate) This update also fixes various bugs. Documentation for these bug fixes will be available shortly from the Technical Notes document linked to in the References section. Users should upgrade to these updated packages, which contain backported patches to resolve these issues, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to take effect. Affected Software/OS: 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: 5.4 CVSS Vector: AV:N/AC:H/Au:N/C:N/I:N/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2011-1767 [oss-security] 20110505 Re: CVE requests - kernel network vulns http://www.openwall.com/lists/oss-security/2011/05/05/6 http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c2892f02712e9516d72841d5c019ed6916329794 https://bugzilla.redhat.com/show_bug.cgi?id=702303 https://github.com/torvalds/linux/commit/c2892f02712e9516d72841d5c019ed6916329794 Common Vulnerability Exposure (CVE) ID: CVE-2011-1768 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d5aa407f59f5b83d2c50ec88f5bf56d40f1f8978 https://github.com/torvalds/linux/commit/d5aa407f59f5b83d2c50ec88f5bf56d40f1f8978 Common Vulnerability Exposure (CVE) ID: CVE-2011-2479 [oss-security] 20110620 Re: CVE request: kernel: thp: madvise on top of /dev/zero private mapping can lead to panic http://www.openwall.com/lists/oss-security/2011/06/20/14 http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=78f11a255749d09025f54d4e2df4fbcb031530e2 https://bugzilla.redhat.com/show_bug.cgi?id=714761 https://github.com/torvalds/linux/commit/78f11a255749d09025f54d4e2df4fbcb031530e2
Copyright	Copyright (C) 2012 Greenbone AG

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