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Red Hat Enterprise Linux 7: RHSA-2020:1070-01 Kernel-RT Security Update

red hat
Calendar Grey March 31, 2020
Dist Redhat Esm H88
Kernel-rt vulnerability and patch resolution assessed as moderate by Red Hat. Key information and remediation steps for stakeholders.
An update for kernel-rt is now available for Red Hat Enterprise Linux 7

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.

Summary

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.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix moderate impact DoS threat kernel-rt

References

https://access.redhat.com/security/cve/CVE-2015-9289 https://access.redhat.com/security/cve/CVE-2017-17807 https://access.redhat.com/security/cve/CVE-2018-7191 https://access.redhat.com/security/cve/CVE-2018-19985 https://access.redhat.com/security/cve/CVE-2018-20169 https://access.redhat.com/security/cve/CVE-2019-3901 https://access.redhat.com/security/cve/CVE-2019-9503 https://access.redhat.com/security/cve/CVE-2019-10207 https://access.redhat.com/security/cve/CVE-2019-10638 https://access.redhat.com/security/cve/CVE-2019-10639 https://access.redhat.com/security/cve/CVE-2019-11190 https://access.redhat.com/security/cve/CVE-2019-11884 https://access.redhat.com/security/cve/CVE-2019-12382 https://access.redhat.com/security/cve/CVE-2019-13233 https://access.redhat.com/security/cve/CVE-2019-14283 https://access.redhat.com/security/cve/CVE-2019-15916 https://access.redhat.com/security/cve/CVE-2019-16746 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/7.8_release_notes/index

Package List

Red Hat Enterprise Linux for Real Time for NFV (v. 7):
Source: kernel-rt-3.10.0-1127.rt56.1093.el7.src.rpm
noarch: kernel-rt-doc-3.10.0-1127.rt56.1093.el7.noarch.rpm
x86_64: 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-debug-debuginfo-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-debug-kvm-3.10.0-1127.rt56.1093.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-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-debuginfo-common-x86_64-3.10.0-1127.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-kvm-debuginfo-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-trace-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-trace-kvm-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
Red Hat Enterprise Linux for Real Time (v. 7):
Source: kernel-rt-3.10.0-1127.rt56.1093.el7.src.rpm
noarch: kernel-rt-doc-3.10.0-1127.rt56.1093.el7.noarch.rpm
x86_64:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:1070-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1070
Issue date: 2020-03-31

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 impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix moderate impact DoS threat kernel-rt

Relevant Releases Architectures

Red Hat Enterprise Linux for Real Time (v. 7) - noarch, x86_64

Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64

Bugs Fixed

1528335 - CVE-2017-17807 kernel: Missing permissions check for request_key() destination allows local attackers to add keys to keyring without Write permission

1550584 - spurious ktimersoftd wake ups increases latency (rhel-rt 7)

1660385 - CVE-2018-20169 kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS

1666106 - CVE-2018-19985 kernel: oob memory read in hso_probe in drivers/net/usb/hso.c

1690543 - 8 vCPU guest need max latency < 20 us with stress

1696087 - BUG: scheduling while atomic in zswap

1699438 - add_timer_on on remote CPUs not firing

1699856 - CVE-2019-11190 kernel: ASLR bypass for setuid binaries due to late install_exec_creds()

1701245 - CVE-2019-3901 kernel: perf_event_open() and execve() race in setuid programs allows a data leak

1701842 - CVE-2019-9503 kernel: brcmfmac frame validation bypass

1708718 - RT: update kernel-rt source tree to match RHEL 7.8 tree

1709837 - CVE-2019-11884 kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command

1715554 - CVE-2019-12382 kernel: unchecked kstrdup of fwstr in drm_load_edid_firmware leads to denial of service

1716328 - CVE-2018-7191 kernel: denial of service via ioctl call in network tun handling

1727756 - CVE-2019-13233 kernel: use-after-free in arch/x86/lib/insn-eval.c

1729931 - CVE-2019-10638 Kernel: net: weak IP ID generation leads to remote device tracking

Read the Full Advisory

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