Issued:
2020-03-31
Updated:
2020-03-31

RHSA-2020:1070 - Moderate: kernel-rt security and bug fix update

Synopsis

Moderate: kernel-rt security and bug fix update

Type/Severity

Security Advisory Moderate

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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: out of bound read in DVB connexant driver. (CVE-2015-9289)

  • kernel: Missing permissions check for request_key() destination allows local attackers to add keys to keyring without Write permission (CVE-2017-17807)

  • kernel: denial of service via ioctl call in network tun handling (CVE-2018-7191)

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

  • kernel: perf_event_open() and execve() race in setuid programs allows a data leak (CVE-2019-3901)

  • kernel: brcmfmac frame validation bypass (CVE-2019-9503)

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

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

  • kernel: unchecked kstrdup of fwstr in drm_load_edid_firmware leads to denial of service (CVE-2019-12382)

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

  • kernel: integer overflow and OOB read in drivers/block/floppy.c (CVE-2019-14283)

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

  • kernel: buffer-overflow hardening in WiFi beacon validation code. (CVE-2019-16746)

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

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

  • Kernel: net: using kernel space address bits to derive IP ID may potentially break KASLR (CVE-2019-10639)

  • kernel: ASLR bypass for setuid binaries due to late install_exec_creds() (CVE-2019-11190)

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 7.8 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 Real Time7x86_64
Red Hat Enterprise Linux for Real Time for x86_64 - Extended Life Cycle Support7x86_64
Red Hat Enterprise Linux for Real Time for NFV7x86_64

Updated Packages

  • kernel-rt-debug-kvm-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-debug-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-trace-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-debug-devel-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-trace-kvm-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-debug-kvm-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-3.10.0-1127.rt56.1093.el7.src.rpm
  • kernel-rt-debuginfo-common-x86_64-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-trace-kvm-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-trace-devel-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-doc-3.10.0-1127.rt56.1093.el7.noarch.rpm
  • kernel-rt-trace-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-kvm-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-devel-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-kvm-3.10.0-1127.rt56.1093.el7.x86_64.rpm
  • kernel-rt-debug-debuginfo-3.10.0-1127.rt56.1093.el7.x86_64.rpm

Fixes

CVEs

References

Additional information