-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== 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. 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More contact details at https://access.redhat.com/security/team/contact/ Copyright 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBY3OMl9zjgjWX9erEAQga8xAAji7Bp7W+r5JoAgnmLjAr0OuPxcy0wrsk IWQANfMeO9PBNz7se7saJtQBaCcQsqYWWUhyvJqP+mf7KuwLFkhadlWsOCvUvbt9 irXURndplrL4PDdFS2cdf8j70kYQj3MAibGCk9yUei3W/GbW2YwbaKG8z2/+xj7c AfStawXS0EuPi5hXTHb+38minSm3FVbQlRMT4mtoEbBodIRWMVs6CWMavgHPPj+V v+KoZHsOP0PbSU+ss8tvTwDCOtpibJcmLNiJgQuBZiA55Sl2K5u7xCk39b1jvUmQ Lk97tSD9VwbIOsj/QXmUIZzKPIvXr0oETD6+Y3tP4vD2rPz9BdgmetvhLYc/ZvVx tC4Q42onfp69pfeYA5eIMrofQdzH+IoeBYgtrbeI008prfanjyAMNN95glEnZ3xx FWxx9I+fgIXIax77OURyrNWsRLgXi0d1nWwOEIxfbn9EJUdnRpMD4oaVmhJ7WIQk iCVRRjW+KYFqZodE/PJXe03WsC/Y2KAVWShd7lqXGPih/PHkNrmzCwkgS1NxOiZV 6FNUX5u/yZ3uxgXdx2dzfIAm0edVvHAEBFI+8jfqa6EBXDhxQ3NgxBsiDfCJTaRM G2cZehg9xVmPVSkDpi7/zSLOWHLnTEcw1/ARnu8So3M24+/yKi4tjj0QvQ+H0d10 kGgOdfd83mQ=P05y -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce