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Red Hat Security Advisory 2022-7933-01

Red Hat Security Advisory 2022-7933-01
Posted Nov 15, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-7933-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include code execution, denial of service, double free, information leakage, null pointer, out of bounds access, out of bounds write, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-36516, CVE-2021-3640, CVE-2022-0168, CVE-2022-0617, CVE-2022-0854, CVE-2022-1016, CVE-2022-1048, CVE-2022-1184, CVE-2022-1280, CVE-2022-1353, CVE-2022-1679, CVE-2022-1852, CVE-2022-1998, CVE-2022-20368
SHA-256 | c7306cb3e2d21e76d1cf923d8e8152b52d296914c9dd94bd60e420cd01196ce6

Red Hat Security Advisory 2022-7933-01

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====================================================================
Red Hat Security Advisory

Synopsis: Moderate: kernel-rt security and bug fix update
Advisory ID: RHSA-2022:7933-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:7933
Issue date: 2022-11-15
CVE Names: CVE-2020-36516 CVE-2021-3640 CVE-2022-0168
CVE-2022-0617 CVE-2022-0854 CVE-2022-1016
CVE-2022-1048 CVE-2022-1184 CVE-2022-1280
CVE-2022-1353 CVE-2022-1679 CVE-2022-1852
CVE-2022-1998 CVE-2022-2586 CVE-2022-2639
CVE-2022-20368 CVE-2022-21123 CVE-2022-21125
CVE-2022-21166 CVE-2022-21499 CVE-2022-23816
CVE-2022-23825 CVE-2022-24448 CVE-2022-26373
CVE-2022-28390 CVE-2022-28893 CVE-2022-29581
CVE-2022-29900 CVE-2022-29901 CVE-2022-36946
CVE-2022-39190
====================================================================
1. Summary:

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Real Time (v. 9) - x86_64
Red Hat Enterprise Linux Real Time for NFV (v. 9) - 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):

* off-path attacker may inject data or terminate victim's TCP session
(CVE-2020-36516)

* use-after-free vulnerability in function sco_sock_sendmsg()
(CVE-2021-3640)

* smb2_ioctl_query_info NULL pointer dereference (CVE-2022-0168)

* NULL pointer dereference in udf_expand_file_adinicbdue() during writeback
(CVE-2022-0617)

* swiotlb information leak with DMA_FROM_DEVICE (CVE-2022-0854)

* uninitialized registers on stack in nft_do_chain can cause kernel pointer
leakage to UM (CVE-2022-1016)

* race condition in snd_pcm_hw_free leading to use-after-free
(CVE-2022-1048)

* use-after-free and memory errors in ext4 when mounting and operating on a
corrupted image (CVE-2022-1184)

* concurrency use-after-free between drm_setmaster_ioctl and
drm_mode_getresources (CVE-2022-1280)

* kernel info leak issue in pfkey_register (CVE-2022-1353)

* use-after-free in ath9k_htc_probe_device() could cause an escalation of
privileges (CVE-2022-1679)

* NULL pointer dereference in x86_emulate_insn may lead to DoS
(CVE-2022-1852)

* fanotify misuses fd_install() which could lead to use-after-free
(CVE-2022-1998)

* nf_tables cross-table potential use-after-free may lead to local
privilege escalation (CVE-2022-2586)

* openvswitch: integer underflow leads to out-of-bounds write in
reserve_sfa_size() (CVE-2022-2639)

* slab-out-of-bounds access in packet_recvmsg() (CVE-2022-20368)

* incomplete clean-up of multi-core shared buffers (aka SBDR)
(CVE-2022-21123)

* incomplete clean-up of microarchitectural fill buffers (aka SBDS)
(CVE-2022-21125)

* incomplete clean-up in specific special register write operations (aka
DRPW) (CVE-2022-21166)

* possible to use the debugger to write zero into a location of choice
(CVE-2022-21499)

* AMD: RetBleed Arbitrary Speculative Code Execution with Return
Instructions (CVE-2022-23816, CVE-2022-29900)

* AMD: Branch Type Confusion (non-retbleed) (CVE-2022-23825)

* Intel: Post-barrier Return Stack Buffer Predictions (CVE-2022-26373)

* double free in ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c
(CVE-2022-28390)

* use after free in SUNRPC subsystem (CVE-2022-28893)

* use-after-free due to improper update of reference count in
net/sched/cls_u32.c (CVE-2022-29581)

* Intel: RetBleed Arbitrary Speculative Code Execution with Return
Instructions (CVE-2022-29901)

* DoS in nfqnl_mangle in net/netfilter/nfnetlink_queue.c (CVE-2022-36946)

* nf_tables disallow binding to already bound chain (CVE-2022-39190)

* nfs_atomic_open() returns uninitialized data instead of ENOTDIR
(CVE-2022-24448)

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 9.1 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/):

1980646 - CVE-2021-3640 kernel: use-after-free vulnerability in function sco_sock_sendmsg()
2037386 - CVE-2022-0168 kernel: smb2_ioctl_query_info NULL pointer dereference
2051444 - CVE-2022-24448 kernel: nfs_atomic_open() returns uninitialized data instead of ENOTDIR
2052312 - CVE-2022-1998 kernel: fanotify misuses fd_install() which could lead to use-after-free
2053632 - CVE-2022-0617 kernel: NULL pointer dereference in udf_expand_file_adinicbdue() during writeback
2058395 - CVE-2022-0854 kernel: swiotlb information leak with DMA_FROM_DEVICE
2059928 - CVE-2020-36516 kernel: off-path attacker may inject data or terminate victim's TCP session
2066614 - CVE-2022-1016 kernel: uninitialized registers on stack in nft_do_chain can cause kernel pointer leakage to UM
2066706 - CVE-2022-1048 kernel: race condition in snd_pcm_hw_free leading to use-after-free
2066819 - CVE-2022-1353 kernel: kernel info leak issue in pfkey_register
2070205 - CVE-2022-1184 kernel: use-after-free and memory errors in ext4 when mounting and operating on a corrupted image
2071022 - CVE-2022-1280 kernel: concurrency use-after-free between drm_setmaster_ioctl and drm_mode_getresources
2073064 - CVE-2022-28390 kernel: double free in ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c
2074208 - CVE-2022-28893 kernel: use after free in SUNRPC subsystem
2084125 - CVE-2022-1679 kernel: use-after-free in ath9k_htc_probe_device() could cause an escalation of privileges
2084183 - CVE-2022-21499 kernel: possible to use the debugger to write zero into a location of choice
2084479 - CVE-2022-2639 kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()
2088021 - CVE-2022-29581 kernel: use-after-free due to improper update of reference count in net/sched/cls_u32.c
2089815 - CVE-2022-1852 kernel: NULL pointer dereference in x86_emulate_insn may lead to DoS
2090226 - CVE-2022-23816 CVE-2022-29900 hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions
2090237 - CVE-2022-21123 hw: cpu: incomplete clean-up of multi-core shared buffers (aka SBDR)
2090240 - CVE-2022-21125 hw: cpu: incomplete clean-up of microarchitectural fill buffers (aka SBDS)
2090241 - CVE-2022-21166 hw: cpu: incomplete clean-up in specific special register write operations (aka DRPW)
2103148 - CVE-2022-29901 hw: cpu: Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions
2103153 - CVE-2022-23825 hw: cpu: AMD: Branch Type Confusion (non-retbleed)
2114878 - CVE-2022-2586 kernel: nf_tables cross-table potential use-after-free may lead to local privilege escalation
2115065 - CVE-2022-26373 hw: cpu: Intel: Post-barrier Return Stack Buffer Predictions
2115278 - CVE-2022-36946 kernel: DoS in nfqnl_mangle in net/netfilter/nfnetlink_queue.c
2123695 - CVE-2022-20368 kernel: net/packet: slab-out-of-bounds access in packet_recvmsg()
2129152 - CVE-2022-39190 kernel: nf_tables disallow binding to already bound chain

6. Package List:

Red Hat Enterprise Linux Real Time for NFV (v. 9):

Source:
kernel-rt-5.14.0-162.6.1.rt21.168.el9_1.src.rpm

x86_64:
kernel-rt-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-core-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-core-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-debuginfo-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-devel-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-kvm-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-modules-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-modules-extra-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debuginfo-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-devel-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-kvm-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-modules-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-modules-extra-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm

Red Hat Enterprise Linux Real Time (v. 9):

Source:
kernel-rt-5.14.0-162.6.1.rt21.168.el9_1.src.rpm

x86_64:
kernel-rt-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-core-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-core-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-debuginfo-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-devel-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-modules-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debug-modules-extra-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debuginfo-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-devel-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-modules-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm
kernel-rt-modules-extra-5.14.0-162.6.1.rt21.168.el9_1.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-2020-36516
https://access.redhat.com/security/cve/CVE-2021-3640
https://access.redhat.com/security/cve/CVE-2022-0168
https://access.redhat.com/security/cve/CVE-2022-0617
https://access.redhat.com/security/cve/CVE-2022-0854
https://access.redhat.com/security/cve/CVE-2022-1016
https://access.redhat.com/security/cve/CVE-2022-1048
https://access.redhat.com/security/cve/CVE-2022-1184
https://access.redhat.com/security/cve/CVE-2022-1280
https://access.redhat.com/security/cve/CVE-2022-1353
https://access.redhat.com/security/cve/CVE-2022-1679
https://access.redhat.com/security/cve/CVE-2022-1852
https://access.redhat.com/security/cve/CVE-2022-1998
https://access.redhat.com/security/cve/CVE-2022-2586
https://access.redhat.com/security/cve/CVE-2022-2639
https://access.redhat.com/security/cve/CVE-2022-20368
https://access.redhat.com/security/cve/CVE-2022-21123
https://access.redhat.com/security/cve/CVE-2022-21125
https://access.redhat.com/security/cve/CVE-2022-21166
https://access.redhat.com/security/cve/CVE-2022-21499
https://access.redhat.com/security/cve/CVE-2022-23816
https://access.redhat.com/security/cve/CVE-2022-23825
https://access.redhat.com/security/cve/CVE-2022-24448
https://access.redhat.com/security/cve/CVE-2022-26373
https://access.redhat.com/security/cve/CVE-2022-28390
https://access.redhat.com/security/cve/CVE-2022-28893
https://access.redhat.com/security/cve/CVE-2022-29581
https://access.redhat.com/security/cve/CVE-2022-29900
https://access.redhat.com/security/cve/CVE-2022-29901
https://access.redhat.com/security/cve/CVE-2022-36946
https://access.redhat.com/security/cve/CVE-2022-39190
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.1_release_notes/index
https://access.redhat.com/solutions/6971358

8. Contact:

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

Copyright 2022 Red Hat, Inc.
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