The following advisory data is extracted from: https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_4352.json Red Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment. - Packet Storm Staff ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2024:4352-03 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2024:4352 Issue date: 2024-07-08 Revision: 03 CVE Names: CVE-2020-26555 ==================================================================== 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 Important. 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. [Updated 03 July 2024] The text of this advisory has been updated with the correct product name (Red Hat Enterprise Linux 8) in the Topics section. In the Problem Description section, CVEs of the same sub-components have been grouped together. The packages included in this revised update have not been changed in any way from the packages included in the original advisory. 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): * kernel: tls (CVE-2024-26585,CVE-2024-26584, CVE-2024-26583 * kernel-rt: kernel: PCI interrupt mapping cause oops [rhel-8] (CVE-2021-46909) * kernel: ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry (CVE-2021-47069) * kernel: hwrng: core - Fix page fault dead lock on mmap-ed hwrng (CVE-2023-52615) * kernel-rt: kernel: drm/amdgpu: use-after-free vulnerability (CVE-2024-26656) * kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset CVE-2024-26801) * kernel: Squashfs: check the inode number is not the invalid value of zero (CVE-2024-26982) * kernel: netfilter: nf_tables: use timestamp to check for set element timeout (CVE-2024-27397) * kernel: wifi: mac80211: (CVE-2024-35789, CVE-2024-35838, CVE-2024-35845) * kernel: wifi: nl80211: reject iftype change with mesh ID change (CVE-2024-27410) * kernel: perf/core: Bail out early if the request AUX area is out of bound (CVE-2023-52835) * kernel:TCP-spoofed ghost ACKs and leak initial sequence number (CVE-2023-52881) * kernel: Bluetooth BR/EDR PIN Pairing procedure is vulnerable to an impersonation attack (CVE-2020-26555) * kernel: ovl: fix leaked dentry (CVE-2021-46972) * kernel: platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios (CVE-2021-47073) * kernel: mm/damon/vaddr-test: memory leak in damon_do_test_apply_three_regions() (CVE-2023-52560) * kernel: ppp_async: limit MRU to 64K (CVE-2024-26675) * kernel: mm/swap: fix race when skipping swapcache (CVE-2024-26759) * kernel: RDMA/mlx5: Fix fortify source warning while accessing Eth segment (CVE-2024-26907) * kernel: x86/mm: Disallow vsyscall page read for copy_from_kernel_nofault() (CVE-2024-26906) * kernel: net: ip_tunnel: prevent perpetual headroom growth (CVE-2024-26804) * kernel: net/usb: kalmia: avoid printing uninitialized value on error path (CVE-2023-52703) * kernel: KVM: SVM: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic msrs (CVE-2023-5090) * kernel: EDAC/thunderx: Incorrect buffer size in drivers/edac/thunderx_edac.c (CVE-2023-52464) * kernel: ipv6: sr: fix possible use-after-free and null-ptr-deref (CVE-2024-26735) * kernel: mptcp: fix data re-injection from stale subflow (CVE-2024-26826) * kernel: net/bnx2x: Prevent access to a freed page in page_pool (CVE-2024-26859) * kernel: crypto: (CVE-2024-26974, CVE-2023-52813) * kernel: can: (CVE-2023-52878, CVE-2021-47456) * kernel: usb: (CVE-2023-52781, CVE-2023-52877) * kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups (CVE-2023-52667) * kernel: usbnet: sanity check for maxpacket (CVE-2021-47495) * kernel: gro: fix ownership transfer (CVE-2024-35890) * kernel: erspan: make sure erspan_base_hdr is present in skb->head (CVE-2024-35888) * kernel: tipc: fix kernel warning when sending SYN message (CVE-2023-52700) * kernel: net/mlx5/mlxsw: (CVE-2024-35960, CVE-2024-36007, CVE-2024-35855) * kernel: net/mlx5e: (CVE-2024-35959, CVE-2023-52626, CVE-2024-35835) * kernel: mlxsw: (CVE-2024-35854, CVE-2024-35853, CVE-2024-35852) * kernel: net: (CVE-2024-35958, CVE-2021-47311, CVE-2021-47236, CVE-2021-47310) * kernel: i40e: Do not use WQ_MEM_RECLAIM flag for workqueue (CVE-2024-36004) * kernel: mISDN: fix possible use-after-free in HFC_cleanup() (CVE-2021-47356) * kernel: udf: Fix NULL pointer dereference in udf_symlink function (CVE-2021-47353) Bug Fix(es): * kernel-rt: update RT source tree to the latest RHEL-8.10.z kernel (JIRA:RHEL-40882) * [rhel8.9][cxgb4]BUG: using smp_processor_id() in preemptible [00000000] code: ethtool/54735 (JIRA:RHEL-8779) 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. Solution: https://access.redhat.com/articles/11258 CVEs: CVE-2020-26555 References: https://access.redhat.com/security/updates/classification/#important https://bugzilla.redhat.com/show_bug.cgi?id=1918601 https://bugzilla.redhat.com/show_bug.cgi?id=2248122 https://bugzilla.redhat.com/show_bug.cgi?id=2258875 https://bugzilla.redhat.com/show_bug.cgi?id=2265517 https://bugzilla.redhat.com/show_bug.cgi?id=2265519 https://bugzilla.redhat.com/show_bug.cgi?id=2265520 https://bugzilla.redhat.com/show_bug.cgi?id=2265800 https://bugzilla.redhat.com/show_bug.cgi?id=2266408 https://bugzilla.redhat.com/show_bug.cgi?id=2266831 https://bugzilla.redhat.com/show_bug.cgi?id=2267513 https://bugzilla.redhat.com/show_bug.cgi?id=2267518 https://bugzilla.redhat.com/show_bug.cgi?id=2267730 https://bugzilla.redhat.com/show_bug.cgi?id=2270093 https://bugzilla.redhat.com/show_bug.cgi?id=2271680 https://bugzilla.redhat.com/show_bug.cgi?id=2272692 https://bugzilla.redhat.com/show_bug.cgi?id=2272829 https://bugzilla.redhat.com/show_bug.cgi?id=2273204 https://bugzilla.redhat.com/show_bug.cgi?id=2273278 https://bugzilla.redhat.com/show_bug.cgi?id=2273423 https://bugzilla.redhat.com/show_bug.cgi?id=2273429 https://bugzilla.redhat.com/show_bug.cgi?id=2275604 https://bugzilla.redhat.com/show_bug.cgi?id=2275633 https://bugzilla.redhat.com/show_bug.cgi?id=2275635 https://bugzilla.redhat.com/show_bug.cgi?id=2275733 https://bugzilla.redhat.com/show_bug.cgi?id=2278337 https://bugzilla.redhat.com/show_bug.cgi?id=2278354 https://bugzilla.redhat.com/show_bug.cgi?id=2280434 https://bugzilla.redhat.com/show_bug.cgi?id=2281057 https://bugzilla.redhat.com/show_bug.cgi?id=2281113 https://bugzilla.redhat.com/show_bug.cgi?id=2281157 https://bugzilla.redhat.com/show_bug.cgi?id=2281165 https://bugzilla.redhat.com/show_bug.cgi?id=2281251 https://bugzilla.redhat.com/show_bug.cgi?id=2281253 https://bugzilla.redhat.com/show_bug.cgi?id=2281255 https://bugzilla.redhat.com/show_bug.cgi?id=2281257 https://bugzilla.redhat.com/show_bug.cgi?id=2281272 https://bugzilla.redhat.com/show_bug.cgi?id=2281350 https://bugzilla.redhat.com/show_bug.cgi?id=2281689 https://bugzilla.redhat.com/show_bug.cgi?id=2281693 https://bugzilla.redhat.com/show_bug.cgi?id=2281920 https://bugzilla.redhat.com/show_bug.cgi?id=2281923 https://bugzilla.redhat.com/show_bug.cgi?id=2281925 https://bugzilla.redhat.com/show_bug.cgi?id=2281953 https://bugzilla.redhat.com/show_bug.cgi?id=2281986 https://bugzilla.redhat.com/show_bug.cgi?id=2282394 https://bugzilla.redhat.com/show_bug.cgi?id=2282400 https://bugzilla.redhat.com/show_bug.cgi?id=2282471 https://bugzilla.redhat.com/show_bug.cgi?id=2282472 https://bugzilla.redhat.com/show_bug.cgi?id=2282581 https://bugzilla.redhat.com/show_bug.cgi?id=2282609 https://bugzilla.redhat.com/show_bug.cgi?id=2282612 https://bugzilla.redhat.com/show_bug.cgi?id=2282653 https://bugzilla.redhat.com/show_bug.cgi?id=2282680 https://bugzilla.redhat.com/show_bug.cgi?id=2282698 https://bugzilla.redhat.com/show_bug.cgi?id=2282712 https://bugzilla.redhat.com/show_bug.cgi?id=2282735 https://bugzilla.redhat.com/show_bug.cgi?id=2282902 https://bugzilla.redhat.com/show_bug.cgi?id=2282920