The following advisory data is extracted from: https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_6206.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 security update Advisory ID: RHSA-2024:6206-03 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2024:6206 Issue date: 2024-09-04 Revision: 03 CVE Names: CVE-2021-47069 ==================================================================== Summary: An update for kernel is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. 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. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel:TCP-spoofed ghost ACKs and leak leak initial sequence number (CVE-2023-52881,RHV-2024-1001) * kernel: ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry (CVE-2021-47069) * kernel: drm: Don't unref the same fb many times by mistake due to deadlock handling (CVE-2023-52486) * kernel: pstore/ram: Fix crash when setting number of cpus to an odd number (CVE-2023-52619) * kernel: mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again (CVE-2024-26720) * kernel: vfio/pci: Lock external INTx masking ops (CVE-2024-26810) * kernel: igc: avoid returning frame twice in XDP_REDIRECT (CVE-2024-26853) * kernel: net/ipv6: avoid possible UAF in ip6_route_mpath_notify() (CVE-2024-26852) * kernel: fs: sysfs: Fix reference leak in sysfs_break_active_protection() (CVE-2024-26993) * kernel: crypto: qat - resolve race condition during AER recovery (CVE-2024-26974) * kernel: dmaengine/idxd: hardware erratum allows potential security problem with direct access by untrusted application (CVE-2024-21823) * kernel: wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes (CVE-2024-35789) * kernel: wifi: iwlwifi: dbg-tlv: ensure NUL termination (CVE-2024-35845) * kernel: hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field (CVE-2021-47385) * kernel: net: fix out-of-bounds access in ops_init (CVE-2024-36883) * kernel: rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation (CVE-2024-36017) * kernel: wifi: nl80211: don't free NULL coalescing rule (CVE-2024-36941) * kernel: tcp: Use refcount_inc_not_zero() in tcp_twsk_unique(). (CVE-2024-36904) * kernel: net: bridge: mst: fix vlan use-after-free (CVE-2024-36979) * kernel: drm/amdgpu: Fix possible null pointer dereference (CVE-2023-52883) * kernel: phylib: fix potential use-after-free (CVE-2022-48754) * kernel: net: amd-xgbe: Fix skb data length underflow (CVE-2022-48743) * kernel: af_unix: Fix data races in unix_release_sock/unix_stream_sendmsg (CVE-2024-38596) * kernel: net: fix information leakage in /proc/net/ptype (CVE-2022-48757) * kernel: r8169: Fix possible ring buffer corruption on fragmented Tx packets. (CVE-2024-38586) * kernel: gfs2: Fix potential glock use-after-free on unmount (CVE-2024-38570) * kernel: bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq (CVE-2024-38540) * kernel: ipvlan: Dont Use skb->sk in ipvlan_process_v{4,6}_outbound (CVE-2024-33621) * kernel: tcp: Fix shift-out-of-bounds in dctcp_update_alpha(). (CVE-2024-37356) * kernel: tls: fix missing memory barrier in tls_init (CVE-2024-36489) * kernel: ionic: fix use after netif_napi_del() (CVE-2024-39502) * kernel: virtio-net: tap: mlx5_core short frame denial of service (CVE-2024-41090) * kernel: virtio-net: tun: mlx5_core short frame denial of service (CVE-2024-41091) * kernel: NFSv4: Fix memory leak in nfs4_set_security_label (CVE-2024-41076) 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-2021-47069 References: https://access.redhat.com/security/updates/classification/#important https://bugzilla.redhat.com/show_bug.cgi?id=2258875 https://bugzilla.redhat.com/show_bug.cgi?id=2267513 https://bugzilla.redhat.com/show_bug.cgi?id=2269070 https://bugzilla.redhat.com/show_bug.cgi?id=2270084 https://bugzilla.redhat.com/show_bug.cgi?id=2273141 https://bugzilla.redhat.com/show_bug.cgi?id=2273654 https://bugzilla.redhat.com/show_bug.cgi?id=2275748 https://bugzilla.redhat.com/show_bug.cgi?id=2275761 https://bugzilla.redhat.com/show_bug.cgi?id=2278314 https://bugzilla.redhat.com/show_bug.cgi?id=2278354 https://bugzilla.redhat.com/show_bug.cgi?id=2278989 https://bugzilla.redhat.com/show_bug.cgi?id=2281057 https://bugzilla.redhat.com/show_bug.cgi?id=2281272 https://bugzilla.redhat.com/show_bug.cgi?id=2282355 https://bugzilla.redhat.com/show_bug.cgi?id=2284271 https://bugzilla.redhat.com/show_bug.cgi?id=2284417 https://bugzilla.redhat.com/show_bug.cgi?id=2284474 https://bugzilla.redhat.com/show_bug.cgi?id=2284541 https://bugzilla.redhat.com/show_bug.cgi?id=2293276 https://bugzilla.redhat.com/show_bug.cgi?id=2293300 https://bugzilla.redhat.com/show_bug.cgi?id=2293304 https://bugzilla.redhat.com/show_bug.cgi?id=2293316 https://bugzilla.redhat.com/show_bug.cgi?id=2293371 https://bugzilla.redhat.com/show_bug.cgi?id=2293383 https://bugzilla.redhat.com/show_bug.cgi?id=2293402 https://bugzilla.redhat.com/show_bug.cgi?id=2293423 https://bugzilla.redhat.com/show_bug.cgi?id=2293459 https://bugzilla.redhat.com/show_bug.cgi?id=2293657 https://bugzilla.redhat.com/show_bug.cgi?id=2293658 https://bugzilla.redhat.com/show_bug.cgi?id=2293687 https://bugzilla.redhat.com/show_bug.cgi?id=2297474 https://bugzilla.redhat.com/show_bug.cgi?id=2299240 https://bugzilla.redhat.com/show_bug.cgi?id=2299336 https://bugzilla.redhat.com/show_bug.cgi?id=2300453