Executive Summary

Summary
Titlekernel security, bug fix, and enhancement update
Informations
NameRHSA-2012:0480First vendor Publication2012-04-17
VendorRedHatLast vendor Modification2012-04-17
Severity (Vendor) ImportantRevision01

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score5Attack RangeNetwork
Cvss Impact Score2.9Attack ComplexityLow
Cvss Expoit Score10AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated kernel packages that fix one security issue, various bugs, and add one enhancement are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, noarch, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issue:

* A flaw in the xfrm6_tunnel_rcv() function in the Linux kernel's IPv6 implementation could lead to a use-after-free or double free flaw in tunnel6_rcv(). A remote attacker could use this flaw to send specially-crafted packets to a target system that is using IPv6 and also has the xfrm6_tunnel kernel module loaded, causing it to crash. (CVE-2012-1583, Important)

If you do not run applications that use xfrm6_tunnel, you can prevent the xfrm6_tunnel module from being loaded by creating (as the root user) a "/etc/modprobe.d/xfrm6_tunnel.conf" file, and adding the following line to it:

blacklist xfrm6_tunnel

This way, the xfrm6_tunnel module cannot be loaded accidentally. A reboot is not necessary for this change to take effect.

This update also fixes various bugs and adds an enhancement. Documentation for these changes 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 correct this issue, and fix the bugs and add the enhancement noted in the 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 https://access.redhat.com/knowledge/articles/11258

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 functions properly on your system.

5. Bugs fixed (http://bugzilla.redhat.com/):

752304 - CVE-2012-1583 kernel: ipv6: panic using raw sockets 801726 - RHEL5.8 NFSv4 regression - "ls" returns "-ENOTDIR" when listing a subdirectory of exported mount [rhel-5.8.z]

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2012-0480.html

CWE : Common Weakness Enumeration

idName
CWE-399Resource Management Errors

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:21179
 
Oval ID: oval:org.mitre.oval:def:21179
Title: RHSA-2012:0480: kernel security, bug fix, and enhancement update (Important)
Description: Double free vulnerability in the xfrm6_tunnel_rcv function in net/ipv6/xfrm6_tunnel.c in the Linux kernel before 2.6.22, when the xfrm6_tunnel module is enabled, allows remote attackers to cause a denial of service (panic) via crafted IPv6 packets.
Family: unix Class: patch
Reference(s): RHSA-2012:0480-02
CESA-2012:0480
CVE-2012-1583
Version: 4
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): kernel
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:20668
 
Oval ID: oval:org.mitre.oval:def:20668
Title: VMware vSphere and vCOps updates to third party libraries
Description: Double free vulnerability in the xfrm6_tunnel_rcv function in net/ipv6/xfrm6_tunnel.c in the Linux kernel before 2.6.22, when the xfrm6_tunnel module is enabled, allows remote attackers to cause a denial of service (panic) via crafted IPv6 packets.
Family: unix Class: vulnerability
Reference(s): CVE-2012-1583
Version: 4
Platform(s): VMWare ESX Server 4.1
VMWare ESX Server 4.0
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23051
 
Oval ID: oval:org.mitre.oval:def:23051
Title: ELSA-2012:0480: kernel security, bug fix, and enhancement update (Important)
Description: Double free vulnerability in the xfrm6_tunnel_rcv function in net/ipv6/xfrm6_tunnel.c in the Linux kernel before 2.6.22, when the xfrm6_tunnel module is enabled, allows remote attackers to cause a denial of service (panic) via crafted IPv6 packets.
Family: unix Class: patch
Reference(s): ELSA-2012:0480-02
CVE-2012-1583
Version: 6
Platform(s): Oracle Linux 5
Product(s): kernel
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27912
 
Oval ID: oval:org.mitre.oval:def:27912
Title: ELSA-2012-0480 -- kernel security, bug fix, and enhancement update (important)
Description: [2.6.18-308.4.1.el5] - [net] ipv6: fix skb double free in xfrm6_tunnel (Jiri Benc) [752305 743375] {CVE-2012-1583} [2.6.18-308.3.1.el5] - [net] be2net: cancel be_worker during EEH recovery (Ivan Vecera) [805462 773735] - [net] be2net: add vlan/rx-mode/flow-control config to be_setup (Ivan Vecera) [805462 773735] - [x86] disable TSC synchronization when using kvmclock (Marcelo Tosatti) [805460 799170] - [fs] vfs: fix LOOKUP_DIRECTORY not propagated to managed_dentry (Ian Kent) [801726 798809] - [fs] vfs: fix d_instantiate_unique (Ian Kent) [801726 798809] - [fs] nfs: allow high priority COMMITs to bypass inode commit lock (Jeff Layton) [799941 773777] - [fs] nfs: don't skip COMMITs if system under is mem pressure (Jeff Layton) [799941 773777] - [scsi] qla2xxx: Read the HCCR register to flush any PCIe writes (Chad Dupuis) [798748 772192] - [scsi] qla2xxx: Complete mbox cmd timeout before next reset cycle (Chad Dupuis) [798748 772192] - [s390] qdio: wrong buffers-used counter for ERROR buffers (Hendrik Brueckner) [801724 790840] - [net] bridge: Reset IPCB when entering IP stack (Herbert Xu) [804721 749813] - [fs] procfs: add hidepid= and gid= mount options (Jerome Marchand) [770649 770650] - [fs] procfs: parse mount options (Jerome Marchand) [770649 770650] [2.6.18-308.2.1.el5] - [fs] nfs: nfs_fhget should wait on I_NEW instead of I_LOCK (Sachin Prabhu) [795664 785062]
Family: unix Class: patch
Reference(s): ELSA-2012-0480
CVE-2012-1583
Version: 2
Platform(s): Oracle Linux 5
Product(s): kernel
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27823
 
Oval ID: oval:org.mitre.oval:def:27823
Title: ELSA-2012-0480-1 -- kernel security, bug fix, and enhancement update (important)
Description: [2.6.18-308.4.1.0.1.el5] - [net] bonding: fix carrier detect when bond is down [orabug 12377284] - [mm] fix hugetlb page leak (Dave McCracken) [orabug 12375075] - fix ia64 build error due to add-support-above-32-vcpus.patch(Zhenzhong Duan) - [x86] use dynamic vcpu_info remap to support more than 32 vcpus (Zhenzhong Duan) - [x86] Fix lvt0 reset when hvm boot up with noapic param - [scsi] remove printk's when doing I/O to a dead device (John Sobecki, Chris Mason) [orabug 12342275] - [char] ipmi: Fix IPMI errors due to timing problems (Joe Jin) [orabug 12561346] - [scsi] Fix race when removing SCSI devices (Joe Jin) [orabug 12404566] - [net] net: Redo the broken redhat netconsole over bonding (Tina Yang) [orabug 12740042] - [fs] nfs: Fix __put_nfs_open_context() NULL pointer panic (Joe Jin) [orabug 12687646] - [scsi] fix scsi hotplug and rescan race [orabug 10260172] - fix filp_close() race (Joe Jin) [orabug 10335998] - make xenkbd.abs_pointer=1 by default [orabug 67188919] - [xen] check to see if hypervisor supports memory reservation change (Chuck Anderson) [orabug 7556514] - [net] Enable entropy for bnx2,bnx2x,e1000e,igb,ixgb,ixgbe,ixgbevf (John Sobecki) [orabug 10315433] - [NET] Add xen pv netconsole support (Tina Yang) [orabug 6993043] [bz 7258] - [mm] shrink_zone patch (John Sobecki,Chris Mason) [orabug 6086839] - fix aacraid not to reset during kexec (Joe Jin) [orabug 8516042] - [rds] Patch rds to 1.4.2-20 (Andy Grover) [orabug 9471572, 9344105] RDS: Fix BUG_ONs to not fire when in a tasklet ipoib: Fix lockup of the tx queue RDS: Do not call set_page_dirty() with irqs off (Sherman Pun) RDS: Properly unmap when getting a remote access error (Tina Yang) RDS: Fix locking in rds_send_drop_to() - [xen] PVHVM guest with PoD crashes under memory pressure (Chuck Anderson) [orabug 9107465] - [xen] PV guest with FC HBA hangs during shutdown (Chuck Anderson) [orabug 9764220] - Support 256GB+ memory for pv guest (Mukesh Rathor) [orabug 9450615] - fix overcommit memory to use percpu_counter for el5 (KOSAKI Motohiro, Guru Anbalagane) [orabug 6124033] - [ipmi] make configurable timeouts for kcs of ipmi [orabug 9752208] - [ib] fix memory corruption (Andy Grover) [orabug 9972346]
Family: unix Class: patch
Reference(s): ELSA-2012-0480-1
CVE-2012-1583
Version: 2
Platform(s): Oracle Linux 5
Product(s): kernel
ocfs2
oracleasm
kernel-PAE
kernel-PAE-devel
kernel-debug
kernel-debug-devel
kernel-devel
kernel-doc
kernel-headers
kernel-xen
kernel-xen-devel
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Os262

OpenVAS Exploits

DateDescription
2012-08-31Name : VMSA-2012-0013 VMware vSphere and vCOps updates to third party libraries.
File : nvt/gb_VMSA-2012-0013.nasl
2012-07-30Name : CentOS Update for kernel CESA-2012:0480 centos5
File : nvt/gb_CESA-2012_0480_kernel_centos5.nasl
2012-06-15Name : RedHat Update for kernel RHSA-2012:0480-01
File : nvt/gb_RHSA-2012_0480-01_kernel.nasl

Information Assurance Vulnerability Management (IAVM)

DateDescription
2012-09-27IAVM : 2012-A-0153 - Multiple Vulnerabilities in VMware ESX 4.0 and ESXi 4.0
Severity : Category I - VMSKEY : V0033884
2012-09-13IAVM : 2012-A-0148 - Multiple Vulnerabilities in VMware ESXi 4.1 and ESX 4.1
Severity : Category I - VMSKEY : V0033794

Nessus® Vulnerability Scanner

DateDescription
2014-11-26Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2013-0039.nasl - Type : ACT_GATHER_INFO
2014-11-17Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0488.nasl - Type : ACT_GATHER_INFO
2013-07-12Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-0480-1.nasl - Type : ACT_GATHER_INFO
2013-07-12Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-0480.nasl - Type : ACT_GATHER_INFO
2013-01-24Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0720.nasl - Type : ACT_GATHER_INFO
2012-08-31Name : The remote VMware ESXi / ESX host is missing one or more security-related pat...
File : vmware_VMSA-2012-0013.nasl - Type : ACT_GATHER_INFO
2012-08-01Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20120417_kernel_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2012-04-19Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2012-0480.nasl - Type : ACT_GATHER_INFO
2012-04-18Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0480.nasl - Type : ACT_GATHER_INFO

Alert History

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0
DateInformations
2014-02-17 11:55:51
  • Multiple Updates