Patch  oval:com.redhat.rhsa:def:20161277
RHSA-2016:1277: kernel security and bug fix update (Important)  

The kernel packages contain the Linux kernel, the core of any Linux operating system.
These updated kernel packages include several security issues and numerous bug fixes, some of which you can see below. Space precludes documenting all of these bug fixes in this advisory. To see the complete list of bug fixes, users are directed to the related Knowledge Article: https://access.redhat.com/articles/2361921.
Security Fixes:
* A flaw was found in the way certain interfaces of the Linux kernel's Infiniband subsystem used write() as bi-directional ioctl() replacement, which could lead to insufficient memory security checks when being invoked using the splice() system call. A local unprivileged user on a system with either Infiniband hardware present or RDMA Userspace Connection Manager Access module explicitly loaded, could use this flaw to escalate their privileges on the system. (CVE-2016-4565, Important)
* A race condition flaw was found in the way the Linux kernel's SCTP implementation handled sctp_accept() during the processing of heartbeat timeout events. A remote attacker could use this flaw to prevent further connections to be accepted by the SCTP server running on the system, resulting in a denial of service. (CVE-2015-8767, Moderate)
Red Hat would like to thank Jann Horn for reporting CVE-2016-4565.
Bug Fixes:
* When Small Computer System Interface (SCSI) devices were removed or deleted, a system crash could occur due to a race condition between listing all SCSI devices and SCSI device removal. The provided patch ensures that the starting node for the klist_iter_init_node() function is actually a member of the list before using it. As a result, a system crash no longer occurs in the described scenario. (BZ#1333403)
* This update offers a reworked series of patches for the resizable hash table (rhashtable) including a number of backported bug fixes and enhancements from upstream. (BZ#1328801)
* Previously, the same value of the mperf Model-Specific Register (MSR) read twice in a row could lead to a kernel panic due to the divide-by-zero error. The provided patch fixes this bug, and the kernel now handles two identical values of mperf gracefully. (BZ#1334438)
* When a transparent proxy application was running and the number of established connections on the computer exceeded one million, unrelated processes, such as curl or ssh, were unable to bind to a local IP on the box to initiate a connection. The provided patch fixes the cooperation of the REUSEADDR/NOREUSEADDR socket option, and thus prevents the local port from being exhausted. As a result, the aforementioned bug no longer occurs in the described scenario. (BZ#1323960)
* Previously, the kernel support for non-local bind for the IPv6 protocol was incomplete. As a consequence, an attempt to bind a socket to an IPv6 address that is not assigned to the host could fail. The provided patch includes changes in the ip_nonlocal_bind variable, which is now set to allow binding to an IPv6 address that is not assigned to the host. As a result, Linux servers are now able to bind to non-local IPv6 addresses as expected. (BZ#1324502)
* On some servers with a faster CPU, USB initialization could previously lead to a kernel hang during boot. If this inconvenience occurred when booting the second kernel during the kdump operation, the kdump service failed and the vmcore was lost. The provided upstream patch fixes this bug, and the kernel no longer hangs after USB initialization. (BZ#1327581)
* Previously, when running iperf servers using the mlx4_en module, a kernel panic occurred. The underlying source code has been fixed, and the kernel panic no longer occurs in the described scenario. (BZ#1327583)
Create Date: 2016-06-23 Last Update Date: 2016-06-23

Affected Platforms/Products

Affected Products (CPE + CVE references)
  • Canonical  Ubuntu Linux  
  • Debian  Debian Linux  
  • Linux  Linux Kernel  
  • cpe:/o:redhat:enterprise_linux:7
  • cpe:/o:redhat:enterprise_linux:7::client
  • cpe:/o:redhat:enterprise_linux:7::computenode
  • cpe:/o:redhat:enterprise_linux:7::server
  • cpe:/o:redhat:enterprise_linux:7::workstation
Platforms: unix (from OVAL definitions)
  • Red Hat Enterprise Linux 7

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 7 is installed
WARNING! Unknown test oval:com.redhat.rhba:tst:20150364027. 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 signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhsa:tst:20111530024. Please see help for possible reasons
IF : python-perf is earlier than 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277029. Please see help for possible reasons
IF : All of the following are true
IF : perf is earlier than 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277027. Please see help for possible reasons
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 : All of the following are true
IF : kernel-tools-libs-devel is signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhsa:tst:20140678026. Please see help for possible reasons
IF : kernel-tools-libs-devel is earlier than 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277025. Please see help for possible reasons
IF : All of the following are true
IF : kernel-tools-libs is signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhsa:tst:20140678024. Please see help for possible reasons
IF : kernel-tools-libs is earlier than 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277023. Please see help for possible reasons
IF : All of the following are true
IF : kernel-tools is signed with Red Hat redhatrelease2 key
WARNING! Unknown test oval:com.redhat.rhsa:tst:20140678022. Please see help for possible reasons
IF : kernel-tools is earlier than 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277021. 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 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277019. 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 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277017. 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 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277015. Please see help for possible reasons
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 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277013. Please see help for possible reasons
IF : All of the following are true
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 : kernel-devel is earlier than 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277011. Please see help for possible reasons
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 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277009. Please see help for possible reasons
IF : All of the following are true
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 : kernel-debug is earlier than 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277007. Please see help for possible reasons
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 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277005. Please see help for possible reasons
IF : All of the following are true
IF : kernel-abi-whitelists is earlier than 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277003. Please see help for possible reasons
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 : All of the following are true
IF : kernel is earlier than 0:3.10.0-327.22.2.el7
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277001. 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 0:3.10.0-327.22.2.el7 is currently running
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277031. Please see help for possible reasons
IF : kernel earlier than 0:3.10.0-327.22.2.el7 is set to boot up on next boot
WARNING! Unknown test oval:com.redhat.rhsa:tst:20161277032. Please see help for possible reasons

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