Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.5876 kernel-rt security and bug fix update 16 November 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel-rt Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2022-39190 CVE-2022-36946 CVE-2022-29901 CVE-2022-29900 CVE-2022-29581 CVE-2022-28893 CVE-2022-28390 CVE-2022-26373 CVE-2022-24448 CVE-2022-23825 CVE-2022-23816 CVE-2022-21499 CVE-2022-21166 CVE-2022-21125 CVE-2022-21123 CVE-2022-20368 CVE-2022-2639 CVE-2022-2586 CVE-2022-1998 CVE-2022-1852 CVE-2022-1679 CVE-2022-1353 CVE-2022-1280 CVE-2022-1184 CVE-2022-1048 CVE-2022-1016 CVE-2022-0854 CVE-2022-0617 CVE-2022-0168 CVE-2021-3640 CVE-2020-36516 Original Bulletin: https://access.redhat.com/errata/RHSA-2022:7933 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 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----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. 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. - -----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----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBY3QoWskNZI30y1K9AQgfOhAAgWhWslm1oujUS8gI8lQknhmhOEMk8xGd knQ82Ibrqf/NV2ET+ac1cbGtljoGdSs6xp/9bH9Xwlf/oLXDWwfwXQXUt6pxcScR +E1zE3i9Xn7IBbwaYqkuC9K6v3WbGmyjqjlBsrTeuQ/zhpZL2TC2duyBn0ReA0Lc SrRTVzFsMLO8AIpC6zctORcS7LVOGJprr77lJn84emiKHwzks/DtHQRakinz95mA GvCtz5bMOUDD5IoiuC9jiU0/iRVlal9canu86Ttpav+H938AmN/dagTYSpIFDj1F 99XptgcZ0w7dIU1oahopqZ21VyOIgmDtQzWUZ1CB8dOSB6LQPVUpRPwNbpi9OwLW Tf+l6BM+5nQAzmCnvWXo7/hAcTiEofR80Ncv0gJNh1ukpDsSOPHX1Vhc+zPZal3h LYVUgtiLFXGqCnGqJ+L5lrtSUjJGj6QbaLwhclxFYN2DRbNeBAWl5uHk+WDRUbMw 8rAKRRLV9tVGqnm+oy60zW1s8gjC6jLufTgU1QLkyIfvTZHnfuNE7cuj57mAojRy DLDEHaFL9MLv12EwIBqJFAZVSRJIZWca+fPIXILLAYn0KzPHDLZljJzpo1b3hbnW pN89EoMFPFR3hMHt6CfP1NJGRtMeWdepGCUuphu9ONKAYtHf00df/EpDY4gaM1T+ YCr7+Ecl0fU= =WnKR -----END PGP SIGNATURE-----