Oval Definition:oval:com.redhat.rhsa:def:20172704
Revision Date:2017-09-13Version:638
Title:RHSA-2017:2704: kernel-rt security update (Important)
Description:The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • A stack buffer overflow flaw was found in the way the Bluetooth subsystem of the Linux kernel processed pending L2CAP configuration responses from a client. On systems with the stack protection feature enabled in the kernel (CONFIG_CC_STACKPROTECTOR=y, which is enabled on all architectures other than s390x and ppc64[le]), an unauthenticated attacker able to initiate a connection to a system via Bluetooth could use this flaw to crash the system. Due to the nature of the stack protection feature, code execution cannot be fully ruled out, although we believe it is unlikely. On systems without the stack protection feature (ppc64[le]; the Bluetooth modules are not built on s390x), an unauthenticated attacker able to initiate a connection to a system via Bluetooth could use this flaw to remotely execute arbitrary code on the system with ring 0 (kernel) privileges. (CVE-2017-1000251, Important)

    Red Hat would like to thank Armis Labs for reporting this issue.
  • Family:unixClass:patch
    Status:Reference(s):CVE-2017-1000251
    RHSA-2017:2704
    RHSA-2017:2704-00
    RHSA-2017:2704-01
    Platform(s):Red Hat Enterprise Linux 7
    Product(s):
    Definition Synopsis
  • Red Hat Enterprise Linux must be installed
  • OR Package Information
  • Red Hat Enterprise Linux 7 is installed
  • AND
  • kernel-rt earlier than 0:3.10.0-693.2.2.rt56.623.el7 is currently running
  • OR kernel-rt earlier than 0:3.10.0-693.2.2.rt56.623.el7 is set to boot up on next boot
  • AND
  • kernel-rt is earlier than 0:3.10.0-693.2.2.rt56.623.el7
  • AND kernel-rt is signed with Red Hat redhatrelease2 key
  • kernel-rt-debug is earlier than 0:3.10.0-693.2.2.rt56.623.el7
  • AND kernel-rt-debug is signed with Red Hat redhatrelease2 key
  • kernel-rt-debug-devel is earlier than 0:3.10.0-693.2.2.rt56.623.el7
  • AND kernel-rt-debug-devel is signed with Red Hat redhatrelease2 key
  • kernel-rt-debug-kvm is earlier than 0:3.10.0-693.2.2.rt56.623.el7
  • AND kernel-rt-debug-kvm is signed with Red Hat redhatrelease2 key
  • kernel-rt-devel is earlier than 0:3.10.0-693.2.2.rt56.623.el7
  • AND kernel-rt-devel is signed with Red Hat redhatrelease2 key
  • kernel-rt-doc is earlier than 0:3.10.0-693.2.2.rt56.623.el7
  • AND kernel-rt-doc is signed with Red Hat redhatrelease2 key
  • kernel-rt-kvm is earlier than 0:3.10.0-693.2.2.rt56.623.el7
  • AND kernel-rt-kvm is signed with Red Hat redhatrelease2 key
  • kernel-rt-trace is earlier than 0:3.10.0-693.2.2.rt56.623.el7
  • AND kernel-rt-trace is signed with Red Hat redhatrelease2 key
  • kernel-rt-trace-devel is earlier than 0:3.10.0-693.2.2.rt56.623.el7
  • AND kernel-rt-trace-devel is signed with Red Hat redhatrelease2 key
  • kernel-rt-trace-kvm is earlier than 0:3.10.0-693.2.2.rt56.623.el7
  • AND kernel-rt-trace-kvm is signed with Red Hat redhatrelease2 key
  • BACK