RedHat: RHSA-2021-1739:01 Important: kernel-rt security and bug fix...
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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: kernel-rt security and bug fix update
Advisory ID:       RHSA-2021:1739-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:1739
Issue date:        2021-05-18
CVE Names:         CVE-2019-19523 CVE-2019-19528 CVE-2020-0431 
                   CVE-2020-11608 CVE-2020-12114 CVE-2020-12362 
                   CVE-2020-12464 CVE-2020-14314 CVE-2020-14356 
                   CVE-2020-15437 CVE-2020-24394 CVE-2020-25212 
                   CVE-2020-25284 CVE-2020-25285 CVE-2020-25643 
                   CVE-2020-25704 CVE-2020-27786 CVE-2020-27835 
                   CVE-2020-28974 CVE-2020-35508 CVE-2021-0342 
=====================================================================

1. Summary:

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Real Time (v. 8) - x86_64
Red Hat Enterprise Linux Real Time for NFV (v. 8) - x86_64

3. 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: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)

* kernel: use-after-free caused by a malicious USB device in the
drivers/usb/misc/adutux.c driver (CVE-2019-19523)

* kernel: use-after-free bug caused by a malicious USB device in the
drivers/usb/misc/iowarrior.c driver (CVE-2019-19528)

* kernel: possible out of bounds write in kbd_keycode of keyboard.c
(CVE-2020-0431)

* kernel: DoS by corrupting mountpoint reference counter (CVE-2020-12114)

* kernel: use-after-free in usb_sg_cancel function in
drivers/usb/core/message.c (CVE-2020-12464)

* kernel: buffer uses out of index in ext3/4 filesystem (CVE-2020-14314)

* kernel: Use After Free vulnerability in cgroup BPF component
(CVE-2020-14356)

* kernel: NULL pointer dereference in serial8250_isa_init_ports function in
drivers/tty/serial/8250/8250_core.c (CVE-2020-15437)

* kernel: umask not applied on filesystem without ACL support
(CVE-2020-24394)

* kernel: TOCTOU mismatch in the NFS client code (CVE-2020-25212)

* kernel: incomplete permission checking for access to rbd devices
(CVE-2020-25284)

* kernel: race condition between hugetlb sysctl handlers in mm/hugetlb.c
(CVE-2020-25285)

* kernel: improper input validation in ppp_cp_parse_cr function leads to
memory corruption and read overflow (CVE-2020-25643)

* kernel: perf_event_parse_addr_filter memory (CVE-2020-25704)

* kernel: use-after-free in kernel midi subsystem (CVE-2020-27786)

* kernel: child process is able to access parent mm through hfi dev file
handle (CVE-2020-27835)

* kernel: slab-out-of-bounds read in fbcon (CVE-2020-28974)

* kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting
- ->real_parent (CVE-2020-35508)

* kernel: use after free in tun_get_user of tun.c could lead to local
escalation of privilege (CVE-2021-0342)

* kernel: NULL pointer dereferences in ov511_mode_init_regs and
ov518_mode_init_regs in drivers/media/usb/gspca/ov519.c (CVE-2020-11608)

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 8.4 Release Notes linked from the References section.

4. 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.

5. Bugs fixed (https://bugzilla.redhat.com/):

1783434 - CVE-2019-19523 kernel: use-after-free caused by a malicious USB device in the drivers/usb/misc/adutux.c driver
1783507 - CVE-2019-19528 kernel: use-after-free bug caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver
1831726 - CVE-2020-12464 kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c
1833445 - CVE-2020-11608 kernel: NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs in drivers/media/usb/gspca/ov519.c
1848652 - CVE-2020-12114 kernel: DoS by corrupting mountpoint reference counter
1853922 - CVE-2020-14314 kernel: buffer uses out of index in ext3/4 filesystem
1868453 - CVE-2020-14356 kernel: Use After Free vulnerability in cgroup BPF component
1869141 - CVE-2020-24394 kernel: umask not applied on filesystem without ACL support
1877575 - CVE-2020-25212 kernel: TOCTOU mismatch in the NFS client code
1879981 - CVE-2020-25643 kernel: improper input validation in ppp_cp_parse_cr function leads to memory corruption and read overflow
1882591 - CVE-2020-25285 kernel: race condition between hugetlb sysctl handlers in mm/hugetlb.c
1882594 - CVE-2020-25284 kernel: incomplete permission checking for access to rbd devices
1886109 - BUG: using smp_processor_id() in preemptible [00000000] code: handler106/3082 [rhel-rt-8.4.0]
1894793 - After configure hugepage and reboot test server, kernel got panic status.
1895961 - CVE-2020-25704 kernel: perf_event_parse_addr_filter memory
1896842 - host locks up when running stress-ng itimers on RT kernel.
1897869 - Running oslat in RT guest, guest kernel shows Call Trace: INFO: task kcompactd0:35 blocked for more than 600 seconds.
1900933 - CVE-2020-27786 kernel: use-after-free in kernel midi subsystem
1901161 - CVE-2020-15437 kernel: NULL pointer dereference in serial8250_isa_init_ports function in drivers/tty/serial/8250/8250_core.c
1901709 - CVE-2020-27835 kernel: child process is able to access parent mm through hfi dev file handle
1902724 - CVE-2020-35508 kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent
1903126 - CVE-2020-28974 kernel: slab-out-of-bounds read in fbcon
1915799 - CVE-2021-0342 kernel: use after free in tun_get_user of tun.c could lead to local escalation of privilege
1919889 - CVE-2020-0431 kernel: possible out of bounds write in kbd_keycode of keyboard.c
1930246 - CVE-2020-12362 kernel: Integer overflow in Intel(R) Graphics Drivers

6. Package List:

Red Hat Enterprise Linux Real Time for NFV (v. 8):

Source:
kernel-rt-4.18.0-305.rt7.72.el8.src.rpm

x86_64:
kernel-rt-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-core-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-core-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-devel-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-kvm-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-modules-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debuginfo-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-devel-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-kvm-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-modules-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-modules-extra-4.18.0-305.rt7.72.el8.x86_64.rpm

Red Hat Enterprise Linux Real Time (v. 8):

Source:
kernel-rt-4.18.0-305.rt7.72.el8.src.rpm

x86_64:
kernel-rt-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-core-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-core-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-devel-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-modules-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debuginfo-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-devel-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-modules-4.18.0-305.rt7.72.el8.x86_64.rpm
kernel-rt-modules-extra-4.18.0-305.rt7.72.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2019-19523
https://access.redhat.com/security/cve/CVE-2019-19528
https://access.redhat.com/security/cve/CVE-2020-0431
https://access.redhat.com/security/cve/CVE-2020-11608
https://access.redhat.com/security/cve/CVE-2020-12114
https://access.redhat.com/security/cve/CVE-2020-12362
https://access.redhat.com/security/cve/CVE-2020-12464
https://access.redhat.com/security/cve/CVE-2020-14314
https://access.redhat.com/security/cve/CVE-2020-14356
https://access.redhat.com/security/cve/CVE-2020-15437
https://access.redhat.com/security/cve/CVE-2020-24394
https://access.redhat.com/security/cve/CVE-2020-25212
https://access.redhat.com/security/cve/CVE-2020-25284
https://access.redhat.com/security/cve/CVE-2020-25285
https://access.redhat.com/security/cve/CVE-2020-25643
https://access.redhat.com/security/cve/CVE-2020-25704
https://access.redhat.com/security/cve/CVE-2020-27786
https://access.redhat.com/security/cve/CVE-2020-27835
https://access.redhat.com/security/cve/CVE-2020-28974
https://access.redhat.com/security/cve/CVE-2020-35508
https://access.redhat.com/security/cve/CVE-2021-0342
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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RedHat: RHSA-2021-1739:01 Important: kernel-rt security and bug fix update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8

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: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)
* kernel: use-after-free caused by a malicious USB device in the drivers/usb/misc/adutux.c driver (CVE-2019-19523)
* kernel: use-after-free bug caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver (CVE-2019-19528)
* kernel: possible out of bounds write in kbd_keycode of keyboard.c (CVE-2020-0431)
* kernel: DoS by corrupting mountpoint reference counter (CVE-2020-12114)
* kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c (CVE-2020-12464)
* kernel: buffer uses out of index in ext3/4 filesystem (CVE-2020-14314)
* kernel: Use After Free vulnerability in cgroup BPF component (CVE-2020-14356)
* kernel: NULL pointer dereference in serial8250_isa_init_ports function in drivers/tty/serial/8250/8250_core.c (CVE-2020-15437)
* kernel: umask not applied on filesystem without ACL support (CVE-2020-24394)
* kernel: TOCTOU mismatch in the NFS client code (CVE-2020-25212)
* kernel: incomplete permission checking for access to rbd devices (CVE-2020-25284)
* kernel: race condition between hugetlb sysctl handlers in mm/hugetlb.c (CVE-2020-25285)
* kernel: improper input validation in ppp_cp_parse_cr function leads to memory corruption and read overflow (CVE-2020-25643)
* kernel: perf_event_parse_addr_filter memory (CVE-2020-25704)
* kernel: use-after-free in kernel midi subsystem (CVE-2020-27786)
* kernel: child process is able to access parent mm through hfi dev file handle (CVE-2020-27835)
* kernel: slab-out-of-bounds read in fbcon (CVE-2020-28974)
* kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting - ->real_parent (CVE-2020-35508)
* kernel: use after free in tun_get_user of tun.c could lead to local escalation of privilege (CVE-2021-0342)
* kernel: NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs in drivers/media/usb/gspca/ov519.c (CVE-2020-11608)
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 8.4 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changesdescribed in this advisory, refer to:https://access.redhat.com/articles/11258The system must be rebooted for this update to take effect.

References

https://access.redhat.com/security/cve/CVE-2019-19523 https://access.redhat.com/security/cve/CVE-2019-19528 https://access.redhat.com/security/cve/CVE-2020-0431 https://access.redhat.com/security/cve/CVE-2020-11608 https://access.redhat.com/security/cve/CVE-2020-12114 https://access.redhat.com/security/cve/CVE-2020-12362 https://access.redhat.com/security/cve/CVE-2020-12464 https://access.redhat.com/security/cve/CVE-2020-14314 https://access.redhat.com/security/cve/CVE-2020-14356 https://access.redhat.com/security/cve/CVE-2020-15437 https://access.redhat.com/security/cve/CVE-2020-24394 https://access.redhat.com/security/cve/CVE-2020-25212 https://access.redhat.com/security/cve/CVE-2020-25284 https://access.redhat.com/security/cve/CVE-2020-25285 https://access.redhat.com/security/cve/CVE-2020-25643 https://access.redhat.com/security/cve/CVE-2020-25704 https://access.redhat.com/security/cve/CVE-2020-27786 https://access.redhat.com/security/cve/CVE-2020-27835 https://access.redhat.com/security/cve/CVE-2020-28974 https://access.redhat.com/security/cve/CVE-2020-35508 https://access.redhat.com/security/cve/CVE-2021-0342 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/

Package List

Red Hat Enterprise Linux Real Time for NFV (v. 8):
Source: kernel-rt-4.18.0-305.rt7.72.el8.src.rpm
x86_64: kernel-rt-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-core-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-core-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-devel-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-kvm-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-modules-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debuginfo-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-devel-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-kvm-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-modules-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-modules-extra-4.18.0-305.rt7.72.el8.x86_64.rpm
Red Hat Enterprise Linux Real Time (v. 8):
Source: kernel-rt-4.18.0-305.rt7.72.el8.src.rpm
x86_64: kernel-rt-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-core-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-core-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-devel-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-modules-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debuginfo-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-devel-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-modules-4.18.0-305.rt7.72.el8.x86_64.rpm kernel-rt-modules-extra-4.18.0-305.rt7.72.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/

Severity
Advisory ID: RHSA-2021:1739-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:1739
Issued Date: : 2021-05-18
CVE Names: CVE-2019-19523 CVE-2019-19528 CVE-2020-0431 CVE-2020-11608 CVE-2020-12114 CVE-2020-12362 CVE-2020-12464 CVE-2020-14314 CVE-2020-14356 CVE-2020-15437 CVE-2020-24394 CVE-2020-25212 CVE-2020-25284 CVE-2020-25285 CVE-2020-25643 CVE-2020-25704 CVE-2020-27786 CVE-2020-27835 CVE-2020-28974 CVE-2020-35508 CVE-2021-0342

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 impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Relevant Releases Architectures

Red Hat Enterprise Linux Real Time (v. 8) - x86_64

Red Hat Enterprise Linux Real Time for NFV (v. 8) - x86_64

Bugs Fixed

1783434 - CVE-2019-19523 kernel: use-after-free caused by a malicious USB device in the drivers/usb/misc/adutux.c driver

1783507 - CVE-2019-19528 kernel: use-after-free bug caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver

1831726 - CVE-2020-12464 kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c

1833445 - CVE-2020-11608 kernel: NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs in drivers/media/usb/gspca/ov519.c

1848652 - CVE-2020-12114 kernel: DoS by corrupting mountpoint reference counter

1853922 - CVE-2020-14314 kernel: buffer uses out of index in ext3/4 filesystem

1868453 - CVE-2020-14356 kernel: Use After Free vulnerability in cgroup BPF component

1869141 - CVE-2020-24394 kernel: umask not applied on filesystem without ACL support

1877575 - CVE-2020-25212 kernel: TOCTOU mismatch in the NFS client code

1879981 - CVE-2020-25643 kernel: improper input validation in ppp_cp_parse_cr function leads to memory corruption and read overflow

1882591 - CVE-2020-25285 kernel: race condition between hugetlb sysctl handlers in mm/hugetlb.c

1882594 - CVE-2020-25284 kernel: incomplete permission checking for access to rbd devices

1886109 - BUG: using smp_processor_id() in preemptible [00000000] code: handler106/3082 [rhel-rt-8.4.0]

1894793 - After configure hugepage and reboot test server, kernel got panic status.

1895961 - CVE-2020-25704 kernel: perf_event_parse_addr_filter memory

1896842 - host locks up when running stress-ng itimers on RT kernel.

1897869 - Running oslat in RT guest, guest kernel shows Call Trace: INFO: task kcompactd0:35 blocked for more than 600 seconds.

1900933 - CVE-2020-27786 kernel: use-after-free in kernel midi subsystem

1901161 - CVE-2020-15437 kernel: NULL pointer dereference in serial8250_isa_init_ports function in drivers/tty/serial/8250/8250_core.c

1901709 - CVE-2020-27835 kernel: child process is able to access parent mm through hfi dev file handle

1902724 - CVE-2020-35508 kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent

1903126 - CVE-2020-28974 kernel: slab-out-of-bounds read in fbcon

1915799 - CVE-2021-0342 kernel: use after free in tun_get_user of tun.c could lead to local escalation of privilege

1919889 - CVE-2020-0431 kernel: possible out of bounds write in kbd_keycode of keyboard.c

1930246 - CVE-2020-12362 kernel: Integer overflow in Intel(R) Graphics Drivers

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