The following data is constructed from data provided by Red Hat's json file at: https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_7077.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, bug fix, and enhancement update Advisory ID: RHSA-2023:7077-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:7077 Issue date: 2023-11-14 Revision: 01 CVE Names: CVE-2021-43975 ==================================================================== Summary: An update for kernel 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. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: tun: avoid double free in tun_free_netdev (CVE-2022-4744) * kernel: net/sched: multiple vulnerabilities (CVE-2023-3609, CVE-2023-3611, CVE-2023-4128, CVE-2023-4206, CVE-2023-4207, CVE-2023-4208) * kernel: out-of-bounds write in qfq_change_class function (CVE-2023-31436) * kernel: out-of-bounds write in hw_atl_utils_fw_rpc_wait (CVE-2021-43975) * kernel: Rate limit overflow messages in r8152 in intr_callback (CVE-2022-3594) * kernel: use after free flaw in l2cap_conn_del (CVE-2022-3640) * kernel: double free in usb_8dev_start_xmit (CVE-2022-28388) * kernel: vmwgfx: multiple vulnerabilities (CVE-2022-38457, CVE-2022-40133, CVE-2023-33951, CVE-2023-33952) * hw: Intel: Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982) * kernel: Information leak in l2cap_parse_conf_req (CVE-2022-42895) * kernel: KVM: multiple vulnerabilities (CVE-2022-45869, CVE-2023-4155, CVE-2023-30456) * kernel: memory leak in ttusb_dec_exit_dvb (CVE-2022-45887) * kernel: speculative pointer dereference in do_prlimit (CVE-2023-0458) * kernel: use-after-free due to race condition in qdisc_graft (CVE-2023-0590) * kernel: x86/mm: Randomize per-cpu entry area (CVE-2023-0597) * kernel: HID: check empty report_list in hid_validate_values (CVE-2023-1073) * kernel: sctp: fail if no bound addresses can be used for a given scope (CVE-2023-1074) * kernel: hid: Use After Free in asus_remove (CVE-2023-1079) * kernel: use-after-free in drivers/media/rc/ene_ir.c (CVE-2023-1118) * kernel: hash collisions in the IPv6 connection lookup table (CVE-2023-1206) * kernel: ovl: fix use after free in struct ovl_aio_req (CVE-2023-1252) * kernel: denial of service in tipc_conn_close (CVE-2023-1382) * kernel: Use after free bug in btsdio_remove due to race condition (CVE-2023-1989) * kernel: Spectre v2 SMT mitigations problem (CVE-2023-1998) * kernel: ext4: use-after-free in ext4_xattr_set_entry (CVE-2023-2513) * kernel: fbcon: shift-out-of-bounds in fbcon_set_font (CVE-2023-3161) * kernel: out-of-bounds access in relay_file_read (CVE-2023-3268) * kernel: xfrm: NULL pointer dereference in xfrm_update_ae_params (CVE-2023-3772) * kernel: smsusb: use-after-free caused by do_submit_urb (CVE-2023-4132) * kernel: Race between task migrating pages and another task calling exit_mmap (CVE-2023-4732) * Kernel: denial of service in atm_tc_enqueue due to type confusion (CVE-2023-23455) * kernel: mpls: double free on sysctl allocation failure (CVE-2023-26545) * kernel: Denial of service issue in az6027 driver (CVE-2023-28328) * kernel: lib/seq_buf.c has a seq_buf_putmem_hex buffer overflow (CVE-2023-28772) * kernel: blocking operation in dvb_frontend_get_event and wait_event_interruptible (CVE-2023-31084) * kernel: net: qcom/emac: race condition leading to use-after-free in emac_remove (CVE-2023-33203) * kernel: saa7134: race condition leading to use-after-free in saa7134_finidev (CVE-2023-35823) * kernel: dm1105: race condition leading to use-after-free in dm1105_remove.c (CVE-2023-35824) * kernel: r592: race condition leading to use-after-free in r592_remove (CVE-2023-35825) * kernel: net/tls: tls_is_tx_ready() checked list_entry (CVE-2023-1075) * kernel: use-after-free bug in remove function xgene_hwmon_remove (CVE-2023-1855) * kernel: Use after free bug in r592_remove (CVE-2023-3141) * kernel: gfs2: NULL pointer dereference in gfs2_evict_inode (CVE-2023-3212) 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 8.9 Release Notes linked from the References section. Solution: https://access.redhat.com/articles/11258 CVEs: CVE-2021-43975 References: https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.9_release_notes/index https://access.redhat.com/solutions/7027704 https://bugzilla.redhat.com/show_bug.cgi?id=1975026 https://bugzilla.redhat.com/show_bug.cgi?id=2024989 https://bugzilla.redhat.com/show_bug.cgi?id=2037005 https://bugzilla.redhat.com/show_bug.cgi?id=2073091 https://bugzilla.redhat.com/show_bug.cgi?id=2112147 https://bugzilla.redhat.com/show_bug.cgi?id=2133453 https://bugzilla.redhat.com/show_bug.cgi?id=2133455 https://bugzilla.redhat.com/show_bug.cgi?id=2139610 https://bugzilla.redhat.com/show_bug.cgi?id=2147356 https://bugzilla.redhat.com/show_bug.cgi?id=2148520 https://bugzilla.redhat.com/show_bug.cgi?id=2149024 https://bugzilla.redhat.com/show_bug.cgi?id=2151112 https://bugzilla.redhat.com/show_bug.cgi?id=2151317 https://bugzilla.redhat.com/show_bug.cgi?id=2156322 https://bugzilla.redhat.com/show_bug.cgi?id=2165741 https://bugzilla.redhat.com/show_bug.cgi?id=2165926 https://bugzilla.redhat.com/show_bug.cgi?id=2166567 https://bugzilla.redhat.com/show_bug.cgi?id=2168332 https://bugzilla.redhat.com/show_bug.cgi?id=2173403 https://bugzilla.redhat.com/show_bug.cgi?id=2173430 https://bugzilla.redhat.com/show_bug.cgi?id=2173434 https://bugzilla.redhat.com/show_bug.cgi?id=2173444 https://bugzilla.redhat.com/show_bug.cgi?id=2174220 https://bugzilla.redhat.com/show_bug.cgi?id=2174400 https://bugzilla.redhat.com/show_bug.cgi?id=2175160 https://bugzilla.redhat.com/show_bug.cgi?id=2175322 https://bugzilla.redhat.com/show_bug.cgi?id=2175903 https://bugzilla.redhat.com/show_bug.cgi?id=2176140 https://bugzilla.redhat.com/show_bug.cgi?id=2177371 https://bugzilla.redhat.com/show_bug.cgi?id=2177389 https://bugzilla.redhat.com/show_bug.cgi?id=2178301 https://bugzilla.redhat.com/show_bug.cgi?id=2181273 https://bugzilla.redhat.com/show_bug.cgi?id=2181330 https://bugzilla.redhat.com/show_bug.cgi?id=2182443 https://bugzilla.redhat.com/show_bug.cgi?id=2183559 https://bugzilla.redhat.com/show_bug.cgi?id=2184578 https://bugzilla.redhat.com/show_bug.cgi?id=2185945 https://bugzilla.redhat.com/show_bug.cgi?id=2186948 https://bugzilla.redhat.com/show_bug.cgi?id=2187257 https://bugzilla.redhat.com/show_bug.cgi?id=2188468 https://bugzilla.redhat.com/show_bug.cgi?id=2189324 https://bugzilla.redhat.com/show_bug.cgi?id=2192667 https://bugzilla.redhat.com/show_bug.cgi?id=2192671 https://bugzilla.redhat.com/show_bug.cgi?id=2193097 https://bugzilla.redhat.com/show_bug.cgi?id=2193219 https://bugzilla.redhat.com/show_bug.cgi?id=2209710 https://bugzilla.redhat.com/show_bug.cgi?id=2213139 https://bugzilla.redhat.com/show_bug.cgi?id=2213199 https://bugzilla.redhat.com/show_bug.cgi?id=2213485 https://bugzilla.redhat.com/show_bug.cgi?id=2213802 https://bugzilla.redhat.com/show_bug.cgi?id=2214348 https://bugzilla.redhat.com/show_bug.cgi?id=2215502 https://bugzilla.redhat.com/show_bug.cgi?id=2215835 https://bugzilla.redhat.com/show_bug.cgi?id=2215836 https://bugzilla.redhat.com/show_bug.cgi?id=2215837 https://bugzilla.redhat.com/show_bug.cgi?id=2217658 https://bugzilla.redhat.com/show_bug.cgi?id=2218195 https://bugzilla.redhat.com/show_bug.cgi?id=2218212 https://bugzilla.redhat.com/show_bug.cgi?id=2218943 https://bugzilla.redhat.com/show_bug.cgi?id=2221707 https://bugzilla.redhat.com/show_bug.cgi?id=2223949 https://bugzilla.redhat.com/show_bug.cgi?id=2225191 https://bugzilla.redhat.com/show_bug.cgi?id=2225201 https://bugzilla.redhat.com/show_bug.cgi?id=2225511 https://bugzilla.redhat.com/show_bug.cgi?id=2230213 https://bugzilla.redhat.com/show_bug.cgi?id=2236982 https://issues.redhat.com/browse/RHEL-340