Patch  oval:com.redhat.rhsa:def:20160855
RHSA-2016:0855: kernel security, bug fix, and enhancement update (Moderate)  

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* It was found that reporting emulation failures to user space could lead to either a local (CVE-2014-7842) or a L2->L1 (CVE-2010-5313) denial of service. In the case of a local denial of service, an attacker must have access to the MMIO area or be able to access an I/O port. Please note that on certain systems, HPET is mapped to userspace as part of vdso (vvar) and thus an unprivileged user may generate MMIO transactions (and enter the emulator) this way. (CVE-2010-5313, CVE-2014-7842, Moderate)
* It was found that the Linux kernel did not properly account file descriptors passed over the unix socket against the process limit. A local user could use this flaw to exhaust all available memory on the system. (CVE-2013-4312, Moderate)
* A buffer overflow flaw was found in the way the Linux kernel's virtio-net subsystem handled certain fraglists when the GRO (Generic Receive Offload) functionality was enabled in a bridged network configuration. An attacker on the local network could potentially use this flaw to crash the system, or, although unlikely, elevate their privileges on the system. (CVE-2015-5156, Moderate)
* It was found that the Linux kernel's IPv6 network stack did not properly validate the value of the MTU variable when it was set. A remote attacker could potentially use this flaw to disrupt a target system's networking (packet loss) by setting an invalid MTU value, for example, via a NetworkManager daemon that is processing router advertisement packets running on the target system. (CVE-2015-8215, Moderate)
* A NULL pointer dereference flaw was found in the way the Linux kernel's network subsystem handled socket creation with an invalid protocol identifier. A local user could use this flaw to crash the system. (CVE-2015-8543, Moderate)
* It was found that the espfix functionality does not work for 32-bit KVM paravirtualized guests. A local, unprivileged guest user could potentially use this flaw to leak kernel stack addresses. (CVE-2014-8134, Low)
* A flaw was found in the way the Linux kernel's ext4 file system driver handled non-journal file systems with an orphan list. An attacker with physical access to the system could use this flaw to crash the system or, although unlikely, escalate their privileges on the system. (CVE-2015-7509, Low)
* A NULL pointer dereference flaw was found in the way the Linux kernel's ext4 file system driver handled certain corrupted file system images. An attacker with physical access to the system could use this flaw to crash the system. (CVE-2015-8324, Low)
Red Hat would like to thank Nadav Amit for reporting CVE-2010-5313 and CVE-2014-7842, Andy Lutomirski for reporting CVE-2014-8134, and Dmitriy Monakhov (OpenVZ) for reporting CVE-2015-8324. The CVE-2015-5156 issue was discovered by Jason Wang (Red Hat).
Additional Changes:
* Refer to Red Hat Enterprise Linux 6.8 Release Notes for information on new kernel features and known issues, and Red Hat Enterprise Linux Technical Notes for information on device driver updates, important changes to external kernel parameters, notable bug fixes, and technology previews. Both of these documents are linked to in the References section.
Create Date: 2016-05-10 Last Update Date: 2016-05-10

Affected Platforms/Products

Affected Products (CPE + CVE references)
Platforms: unix (from OVAL definitions)
  • Red Hat Enterprise Linux 6

References

Total : 21 Click here to view 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:20070304026. Please see help for possible reasons
IF : All of the following are true
IF : Red Hat Enterprise Linux 6 is installed
WARNING! Unknown test oval:com.redhat.rhba:tst:20111656003. Please see help for possible reasons
IF : Any one of the following are true
IF : All of the following are true
IF : python-perf is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855025. Please see help for possible reasons
IF : python-perf is signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhsa:tst:20111530024. Please see help for possible reasons
IF : All of the following are true
IF : perf is signed with Red Hat redhatrelease2 key
Linux : RPM Test :  perf is signed with Red Hat redhatrelease2 key 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20100842013 (Object depth limit may be exceeded) !!!
signature_keyid equals 199e2f91fd431d51
linux : rpminfo_state 
IF : perf is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855023. Please see help for possible reasons
IF : All of the following are true
IF : kernel-kdump-devel is signed with Red Hat redhatrelease2 key
Linux : RPM Test :  kernel-kdump-devel is signed with Red Hat redhatrelease2 key 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20070099007 (Object depth limit may be exceeded) !!!
signature_keyid equals 199e2f91fd431d51
linux : rpminfo_state 
IF : kernel-kdump-devel is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855021. Please see help for possible reasons
IF : All of the following are true
IF : kernel-kdump is signed with Red Hat redhatrelease2 key
Linux : RPM Test :  kernel-kdump is signed with Red Hat redhatrelease2 key 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20070099008 (Object depth limit may be exceeded) !!!
signature_keyid equals 199e2f91fd431d51
linux : rpminfo_state 
IF : kernel-kdump is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855019. Please see help for possible reasons
IF : All of the following are true
IF : kernel-headers is signed with Red Hat redhatrelease2 key
Linux : RPM Test :  kernel-devel is signed with Red Hat redhatrelease2 key 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20050092003 (Object depth limit may be exceeded) !!!
signature_keyid equals 199e2f91fd431d51
linux : rpminfo_state 
IF : kernel-headers is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855017. Please see help for possible reasons
IF : All of the following are true
IF : kernel-firmware is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855015. Please see help for possible reasons
IF : kernel-firmware is signed with Red Hat redhatrelease2 key
Linux : RPM Test :  kernel-debug-devel is signed with Red Hat redhatrelease2 key 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20070993007 (Object depth limit may be exceeded) !!!
signature_keyid equals 199e2f91fd431d51
linux : rpminfo_state 
IF : All of the following are true
IF : kernel-doc is signed with Red Hat redhatrelease2 key
Linux : RPM Test :  kernel-debug is signed with Red Hat redhatrelease2 key 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20070993004 (Object depth limit may be exceeded) !!!
signature_keyid equals 199e2f91fd431d51
linux : rpminfo_state 
IF : kernel-doc is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855013. Please see help for possible reasons
IF : All of the following are true
IF : kernel-devel is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855011. Please see help for possible reasons
IF : kernel-devel is signed with Red Hat redhatrelease2 key
Linux : RPM Test :  kernel-bootwrapper is signed with Red Hat redhatrelease2 key 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20100842007 (Object depth limit may be exceeded) !!!
signature_keyid equals 199e2f91fd431d51
linux : rpminfo_state 
IF : All of the following are true
IF : kernel-debug-devel is signed with Red Hat redhatrelease2 key
Linux : RPM Test :  kernel-headers is signed with Red Hat redhatrelease2 key 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20070099003 (Object depth limit may be exceeded) !!!
signature_keyid equals 199e2f91fd431d51
linux : rpminfo_state 
IF : kernel-debug-devel is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855009. Please see help for possible reasons
IF : All of the following are true
IF : kernel-debug is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855007. Please see help for possible reasons
IF : kernel-debug is signed with Red Hat redhatrelease2 key
Linux : RPM Test :  kernel is signed with Red Hat redhatrelease2 key 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20030416002 (Object depth limit may be exceeded) !!!
signature_keyid equals 199e2f91fd431d51
linux : rpminfo_state 
IF : All of the following are true
IF : kernel-bootwrapper is signed with Red Hat redhatrelease2 key
Linux : RPM Test :  Red Hat Enterprise Linux 6 ComputeNode is installed 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20100842004 (Object depth limit may be exceeded) !!!
version pattern match ^6[^\d]
linux : rpminfo_state 
IF : kernel-bootwrapper is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855005. Please see help for possible reasons
IF : All of the following are true
IF : kernel-abi-whitelists is signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhsa:tst:20131645004. Please see help for possible reasons
IF : kernel-abi-whitelists is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855003. Please see help for possible reasons
IF : All of the following are true
IF : kernel is earlier than 0:2.6.32-642.el6
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855001. Please see help for possible reasons
IF : kernel is signed with Red Hat redhatrelease2 key
Linux : RPM Test :  Red Hat Enterprise Linux 6 Server is installed 
At least one of the objects listed below must exist on the system (Existence check)
Unknown object oval:com.redhat.rhsa:obj:20100842002 (Object depth limit may be exceeded) !!!
version pattern match ^6[^\d]
linux : rpminfo_state 
IF : Any one of the following are true
IF : kernel earlier than 0:2.6.32-642.el6 is currently running
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855027. Please see help for possible reasons
IF : kernel earlier than 0:2.6.32-642.el6 is set to boot up on next boot
WARNING! Unknown test oval:com.redhat.rhsa:tst:20160855028. Please see help for possible reasons

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