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AUSCERT External Security Bulletin Redistribution
ESB-2022.5706
kernel-rt security and bug fix update
9 November 2022
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kernel-rt
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2022-36946 CVE-2022-29581 CVE-2022-28893
CVE-2022-28390 CVE-2022-27950 CVE-2022-26373
CVE-2022-24448 CVE-2022-21499 CVE-2022-20368
CVE-2022-2938 CVE-2022-2639 CVE-2022-2586
CVE-2022-2078 CVE-2022-1852 CVE-2022-1184
CVE-2022-1055 CVE-2022-1048 CVE-2022-1016
CVE-2022-0854 CVE-2022-0617 CVE-2022-0168
CVE-2021-30002 CVE-2021-3640 CVE-2020-36558
CVE-2020-36516
Original Bulletin:
https://access.redhat.com/errata/RHSA-2022:7444
Comment: CVSS (Max): 7.8 CVE-2022-29581 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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Red Hat Security Advisory
Synopsis: Moderate: kernel-rt security and bug fix update
Advisory ID: RHSA-2022:7444-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:7444
Issue date: 2022-11-08
CVE Names: CVE-2020-36516 CVE-2020-36558 CVE-2021-3640
CVE-2021-30002 CVE-2022-0168 CVE-2022-0617
CVE-2022-0854 CVE-2022-1016 CVE-2022-1048
CVE-2022-1055 CVE-2022-1184 CVE-2022-1852
CVE-2022-2078 CVE-2022-2586 CVE-2022-2639
CVE-2022-2938 CVE-2022-20368 CVE-2022-21499
CVE-2022-24448 CVE-2022-26373 CVE-2022-27950
CVE-2022-28390 CVE-2022-28893 CVE-2022-29581
CVE-2022-36946
=====================================================================
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 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. 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):
* off-path attacker may inject data or terminate victim's TCP session
(CVE-2020-36516)
* Race condition in VT_RESIZEX ioctl when vc_cons[i].d is already NULL
leading to NULL pointer dereference (CVE-2020-36558)
* use-after-free vulnerability in function sco_sock_sendmsg()
(CVE-2021-3640)
* Memory leak for large arguments in video_usercopy function in
drivers/media/v4l2-core/v4l2-ioctl.c (CVE-2021-30002)
* 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 in tc_new_tfilter() in net/sched/cls_api.c (CVE-2022-1055)
* use-after-free and memory errors in ext4 when mounting and operating on a
corrupted image (CVE-2022-1184)
* NULL pointer dereference in x86_emulate_insn may lead to DoS
(CVE-2022-1852)
* buffer overflow in nft_set_desc_concat_parse() (CVE-2022-2078)
* 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)
* use-after-free when psi trigger is destroyed while being polled
(CVE-2022-2938)
* net/packet: slab-out-of-bounds access in packet_recvmsg()
(CVE-2022-20368)
* possible to use the debugger to write zero into a location of choice
(CVE-2022-21499)
* Post-barrier Return Stack Buffer Predictions (CVE-2022-26373)
* Memory leak in drivers/hid/hid-elo.c (CVE-2022-27950)
* 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)
* DoS in nfqnl_mangle in net/netfilter/nfnetlink_queue.c (CVE-2022-36946)
* 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 8.7 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/):
1946279 - CVE-2021-30002 kernel: memory leak for large arguments in video_usercopy function in drivers/media/v4l2-core/v4l2-ioctl.c
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
2037769 - Softirq hrtimers are being placed on the per-CPU softirq clocks on isolcpu?s.
2051444 - CVE-2022-24448 kernel: nfs_atomic_open() returns uninitialized data instead of ENOTDIR
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
2069408 - CVE-2022-27950 kernel: memory leak in drivers/hid/hid-elo.c
2070205 - CVE-2022-1184 kernel: use-after-free and memory errors in ext4 when mounting and operating on a corrupted image
2070220 - CVE-2022-1055 kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c
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
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
2096178 - CVE-2022-2078 kernel: buffer overflow in nft_set_desc_concat_parse()
2112693 - CVE-2020-36558 kernel: race condition in VT_RESIZEX ioctl when vc_cons[i].d is already NULL leading to NULL pointer dereference
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
2120175 - CVE-2022-2938 kernel: use-after-free when psi trigger is destroyed while being polled
2123695 - CVE-2022-20368 kernel: net/packet: slab-out-of-bounds access in packet_recvmsg()
6. Package List:
Red Hat Enterprise Linux Real Time for NFV (v. 8):
Source:
kernel-rt-4.18.0-425.3.1.rt7.213.el8.src.rpm
x86_64:
kernel-rt-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-core-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-core-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-devel-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-kvm-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-modules-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debuginfo-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-devel-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-kvm-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-modules-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-modules-extra-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
Red Hat Enterprise Linux Real Time (v. 8):
Source:
kernel-rt-4.18.0-425.3.1.rt7.213.el8.src.rpm
x86_64:
kernel-rt-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-core-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-core-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-devel-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-modules-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debuginfo-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-devel-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-modules-4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
kernel-rt-modules-extra-4.18.0-425.3.1.rt7.213.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-2020-36516
https://access.redhat.com/security/cve/CVE-2020-36558
https://access.redhat.com/security/cve/CVE-2021-3640
https://access.redhat.com/security/cve/CVE-2021-30002
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-2022-1055
https://access.redhat.com/security/cve/CVE-2022-1184
https://access.redhat.com/security/cve/CVE-2022-1852
https://access.redhat.com/security/cve/CVE-2022-2078
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-2022-2938
https://access.redhat.com/security/cve/CVE-2022-20368
https://access.redhat.com/security/cve/CVE-2022-21499
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-2022-27950
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-2022-36946
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.7_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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