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Red Hat Enterprise Linux 9 RHSA-2022-7933 Moderate: Kernel-RT TCP Threat
red hat
November 15, 2022
An update for kernel-rt is now available for Red Hat Enterprise Linux 9
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):
* 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.
Topics Covered
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 Read the Full Advisory
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
Read the Full Advisory
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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
Topic
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 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 Covered
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
Bugs Fixed
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
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