Patch  oval:com.redhat.rhsa:def:20130747
RHSA-2013:0747: kernel security and bug fix update (Moderate)  

The kernel packages contain the Linux kernel, the core of any Linux operating system.
This update fixes the following security issues:
* A flaw was found in the Xen netback driver implementation in the Linux kernel. A privileged guest user with access to a para-virtualized network device could use this flaw to cause a long loop in netback, leading to a denial of service that could potentially affect the entire system. (CVE-2013-0216, Moderate)
* A flaw was found in the Xen PCI device back-end driver implementation in the Linux kernel. A privileged guest user in a guest that has a PCI passthrough device could use this flaw to cause a denial of service that could potentially affect the entire system. (CVE-2013-0231, Moderate)
* A NULL pointer dereference flaw was found in the IP packet transformation framework (XFRM) implementation in the Linux kernel. A local user who has the CAP_NET_ADMIN capability could use this flaw to cause a denial of service. (CVE-2013-1826, Moderate)
* Information leak flaws were found in the XFRM implementation in the Linux kernel. A local user who has the CAP_NET_ADMIN capability could use these flaws to leak kernel stack memory to user-space. (CVE-2012-6537, Low)
* An information leak flaw was found in the logical link control (LLC) implementation in the Linux kernel. A local, unprivileged user could use this flaw to leak kernel stack memory to user-space. (CVE-2012-6542, Low)
* Two information leak flaws were found in the Linux kernel's Asynchronous Transfer Mode (ATM) subsystem. A local, unprivileged user could use these flaws to leak kernel stack memory to user-space. (CVE-2012-6546, Low)
* An information leak flaw was found in the TUN/TAP device driver in the Linux kernel's networking implementation. A local user with access to a TUN/TAP virtual interface could use this flaw to leak kernel stack memory to user-space. (CVE-2012-6547, Low)
Red Hat would like to thank the Xen project for reporting the CVE-2013-0216 and CVE-2013-0231 issues.
This update also fixes the following bugs:
* The IPv4 code did not correctly update the Maximum Transfer Unit (MTU) of the designed interface when receiving ICMP Fragmentation Needed packets. Consequently, a remote host did not respond correctly to ping attempts. With this update, the IPv4 code has been modified so the MTU of the designed interface is adjusted as expected in this situation. The ping command now provides the expected output. (BZ#923353)
* Previously, the be2net code expected the last word of an MCC completion message from the firmware to be transferred by direct memory access (DMA) at once. However, this is not always true, and could therefore cause the BUG_ON() macro to be triggered in the be_mcc_compl_is_new() function, consequently leading to a kernel panic. The BUG_ON() macro has been removed from be_mcc_compl_is_new(), and the kernel panic no longer occurs in this scenario. (BZ#923910)
* Previously, the NFSv3 server incorrectly converted 64-bit cookies to 32-bit. Consequently, the cookies became invalid, which affected all file system operations depending on these cookies, such as the READDIR operation that is used to read entries from a directory. This led to various problems, such as exported directories being empty or displayed incorrectly, or an endless loop of the READDIRPLUS procedure which could potentially cause a buffer overflow. This update modifies knfsd code so that 64-bit cookies are now handled correctly and all file system operations work as expected. (BZ#924087)
Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.
Create Date: 2013-04-16 Last Update Date: 2013-04-16

Affected Platforms/Products

Affected Products (CPE + CVE references)
Platforms: unix (from OVAL definitions)
  • Red Hat Enterprise Linux 5

References

Criteria

The patch should be installed
IF : Any one of the following are true
IF : Red Hat Enterprise Linux must be installed
WARNING! Unknown test oval:com.redhat.rhba:tst:20070026004. Please see help for possible reasons
IF : All of the following are true
IF : Red Hat Enterprise Linux 5 is installed
WARNING! Unknown test oval:com.redhat.rhba:tst:20070331005. Please see help for possible reasons
IF : Any one of the following are true
IF : All of the following are true
IF : kernel-kdump-devel is earlier than 0:2.6.18-348.4.1.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747023. Please see help for possible reasons
IF : kernel-kdump-devel is signed with Red Hat redhatrelease key
WARNING! Unknown test oval:com.redhat.rhba:tst:20080314012. Please see help for possible reasons
IF : All of the following are true
IF : kernel-PAE-devel is earlier than 0:2.6.18-348.4.1.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747019. Please see help for possible reasons
IF : kernel-PAE-devel is signed with Red Hat redhatrelease key
WARNING! Unknown test oval:com.redhat.rhba:tst:20080314022. Please see help for possible reasons
IF : All of the following are true
IF : kernel-kdump is signed with Red Hat redhatrelease key
WARNING! Unknown test oval:com.redhat.rhba:tst:20080314010. Please see help for possible reasons
IF : kernel-kdump is earlier than 0:2.6.18-348.4.1.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747021. Please see help for possible reasons
IF : All of the following are true
IF : kernel-xen-devel is earlier than 0:2.6.18-348.4.1.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747015. Please see help for possible reasons
IF : kernel-xen-devel is signed with Red Hat redhatrelease key
WARNING! Unknown test oval:com.redhat.rhba:tst:20080314020. Please see help for possible reasons
IF : All of the following are true
IF : kernel-PAE is signed with Red Hat redhatrelease key
WARNING! Unknown test oval:com.redhat.rhba:tst:20080314024. Please see help for possible reasons
IF : kernel-PAE is earlier than 0:2.6.18-348.4.1.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747017. Please see help for possible reasons
IF : All of the following are true
IF : kernel-xen is earlier than 0:2.6.18-348.4.1.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747013. Please see help for possible reasons
IF : kernel-xen is signed with Red Hat redhatrelease key
WARNING! Unknown test oval:com.redhat.rhba:tst:20080314018. Please see help for possible reasons
IF : All of the following are true
IF : kernel is earlier than 0:2.6.18-348.4.1.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747011. Please see help for possible reasons
IF : kernel is signed with Red Hat redhatrelease key
WARNING! Unknown test oval:com.redhat.rhba:tst:20080314008. Please see help for possible reasons
IF : All of the following are true
IF : kernel-headers is earlier than 0:2.6.18-348.4.1.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747009. Please see help for possible reasons
IF : kernel-headers is signed with Red Hat redhatrelease key
WARNING! Unknown test oval:com.redhat.rhba:tst:20080314006. Please see help for possible reasons
IF : All of the following are true
IF : kernel-debug is earlier than 0:2.6.18-348.4.1.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747007. Please see help for possible reasons
IF : kernel-debug is signed with Red Hat redhatrelease key
WARNING! Unknown test oval:com.redhat.rhba:tst:20080314014. Please see help for possible reasons
IF : All of the following are true
IF : kernel-devel is signed with Red Hat redhatrelease key
WARNING! Unknown test oval:com.redhat.rhba:tst:20080314016. Please see help for possible reasons
IF : kernel-devel is earlier than 0:2.6.18-348.4.1.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747005. Please see help for possible reasons
IF : All of the following are true
IF : kernel-debug-devel is signed with Red Hat redhatrelease key
WARNING! Unknown test oval:com.redhat.rhba:tst:20080314004. Please see help for possible reasons
IF : kernel-debug-devel is earlier than 0:2.6.18-348.4.1.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747003. Please see help for possible reasons
IF : All of the following are true
IF : kernel-doc is earlier than 0:2.6.18-348.4.1.el5
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747001. Please see help for possible reasons
IF : kernel-doc is signed with Red Hat redhatrelease key
WARNING! Unknown test oval:com.redhat.rhba:tst:20080314002. Please see help for possible reasons
IF : Any one of the following are true
IF : kernel earlier than 0:2.6.18-348.4.1.el5 is currently running
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747025. Please see help for possible reasons
IF : kernel earlier than 0:2.6.18-348.4.1.el5 is set to boot up on next boot
WARNING! Unknown test oval:com.redhat.rhsa:tst:20130747026. Please see help for possible reasons

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