Issued:
2019-09-11
Updated:
2019-09-11

RHSA-2019:2730 - Important: kernel-rt security and bug fix update

Synopsis

Important: kernel-rt security and bug fix update

Type/Severity

Security Advisory Important

Topic

An update for kernel-rt is now available for Red Hat Enterprise MRG 2.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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):

  • kernel: Memory corruption due to incorrect socket cloning (CVE-2018-9568)

  • kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members (CVE-2018-13405)

  • kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)

  • kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871)

  • kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

  • Backport TCP follow-up for small buffers [mrg-r] (BZ#1732110)

  • update the MRG 2.5.z 3.10 realtime-kernel sources (BZ#1734469)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

ProductVersionArch
MRG Realtime2x86_64

Updated Packages

  • kernel-rt-trace-devel-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-trace-debuginfo-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-debug-debuginfo-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-debug-devel-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-debuginfo-common-x86_64-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-vanilla-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-doc-3.10.0-693.58.1.rt56.652.el6rt.noarch.rpm
  • kernel-rt-vanilla-devel-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-vanilla-debuginfo-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-devel-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-3.10.0-693.58.1.rt56.652.el6rt.src.rpm
  • kernel-rt-trace-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-debug-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-debuginfo-3.10.0-693.58.1.rt56.652.el6rt.x86_64.rpm
  • kernel-rt-firmware-3.10.0-693.58.1.rt56.652.el6rt.noarch.rpm

Fixes

CVEs

References

Additional information