Issued:
2019-11-05
Updated:
2019-11-05

RHSA-2019:3309 - 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 Linux 8.

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

  • Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)

  • Kernel: page cache side channel attacks (CVE-2019-5489)

  • hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)

  • kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c (CVE-2019-10126)

  • Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)

  • kernel: Information Disclosure in crypto_report_one in crypto/crypto_user.c (CVE-2018-19854)

  • kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS (CVE-2018-20169)

  • kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)

  • kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)

  • kernel: SCTP socket buffer memory leak leading to denial of service (CVE-2019-3874)

  • kernel: denial of service vector through vfio DMA mappings (CVE-2019-3882)

  • kernel: null-pointer dereference in hci_uart_set_flow_control (CVE-2019-10207)

  • kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)

  • kernel: fs/ext4/extents.c leads to information disclosure (CVE-2019-11833)

  • kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command (CVE-2019-11884)

  • kernel: use-after-free in arch/x86/lib/insn-eval.c (CVE-2019-13233)

  • kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service (CVE-2019-15916)

  • kernel: oob memory read in hso_probe in drivers/net/usb/hso.c (CVE-2018-19985)

  • Kernel: KVM: leak of uninitialized stack contents to guest (CVE-2019-7222)

  • Kernel: net: weak IP ID generation leads to remote device tracking (CVE-2019-10638)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes linked from the References section.

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
Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension8.8x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension8.6x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension8.4x86_64
Red Hat Enterprise Linux for Real Time8x86_64
Red Hat Enterprise Linux for Real Time for NFV8x86_64
Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service8.8x86_64
Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service8.6x86_64
Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service8.4x86_64
Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service8.2x86_64
Red Hat Enterprise Linux for Real Time - Telecommunications Update Service8.8x86_64
Red Hat Enterprise Linux for Real Time - Telecommunications Update Service8.6x86_64
Red Hat Enterprise Linux for Real Time - Telecommunications Update Service8.4x86_64
Red Hat Enterprise Linux for Real Time - Telecommunications Update Service8.2x86_64

Updated Packages

  • kernel-rt-debuginfo-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-debug-modules-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-debug-kvm-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-kvm-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-debuginfo-common-x86_64-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-debug-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-debug-core-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-4.18.0-147.rt24.93.el8.src.rpm
  • kernel-rt-debug-devel-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-debug-modules-extra-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-modules-extra-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-devel-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-debug-debuginfo-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-modules-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-debug-kvm-debuginfo-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-kvm-debuginfo-4.18.0-147.rt24.93.el8.x86_64.rpm
  • kernel-rt-core-4.18.0-147.rt24.93.el8.x86_64.rpm

Fixes

CVEs

References

Additional information