An update for kernel is now available for Red Hat Enterprise Linux 9.
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.
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails (CVE-2023-3609)
* kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route (CVE-2023-4128, CVE-2023-4206, CVE-2023-4207, CVE-2023-4208)
* kernel: eBPF: insufficient stack type checks in dynptr (CVE-2023-39191)
* Kernel: race when faulting a device private page in memory manager (CVE-2022-3523)
* kernel: use-after-free in l1oip timer handlers (CVE-2022-3565)
* kernel: Rate limit overflow messages in r8152 in intr_callback (CVE-2022-3594)
* kernel: vmwgfx: use-after-free in vmw_cmd_res_check (CVE-2022-38457)
* kernel: vmwgfx: use-after-free in vmw_execbuf_tie_context (CVE-2022-40133)
* hw: Intel: Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982)
* kernel: Information leak in l2cap_parse_conf_req in net/bluetooth/l2cap_core.c (CVE-2022-42895)
* 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: 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: use-after-free in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c (CVE-2023-1652)
* kernel: Use after free bug in btsdio_remove due to race condition (CVE-2023-1989)
* 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: xfrm: out-of-bounds read of XFRMA_MTIMER_THRESH nlattr (CVE-2023-3773)
* kernel: KVM: SEV-ES / SEV-SNP VMGEXIT double fetch vulnerability (CVE-2023-4155)
* kernel: exFAT: stack overflow in exfat_get_uniname_from_ext_entry (CVE-2023-4273)
* kernel: mpls: double free on sysctl allocation failure (CVE-2023-26545)
* kernel: KVM: nVMX: missing consistency checks for CR0 and CR4 (CVE-2023-30456)
* kernel: net: qcom/emac: race condition leading to use-after-free in emac_remove() (CVE-2023-33203)
* kernel: vmwgfx: race condition leading to information disclosure vulnerability (CVE-2023-33951)
* kernel: vmwgfx: double free within the handling of vmw_buffer_object objects (CVE-2023-33952)
* 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: tap: tap_open(): correctly initialize socket uid (CVE-2023-1076)
* kernel: missing mmap_lock in file_files_note that could possibly lead to a use after free in the coredump code (CVE-2023-1249)
* 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)
* kernel: NULL pointer dereference due to missing kalloc() return value check in shtp_cl_get_dma_send_buf() (CVE-2023-3358)
* kernel: tap: tap_open(): correctly initialize socket uid next fix of i_uid to current_fsuid (CVE-2023-4194)
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 9.3 Release Notes linked from the References section.
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2022-3523: Use After Free (CWE-416) CVE-2022-3565: Use After Free (CWE-416) CVE-2022-3594: Logging of Excessive Data (CWE-779) CVE-2022-38457: Use After Free (CWE-416) CVE-2022-40133: Use After Free (CWE-416) CVE-2022-40982: Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) CVE-2022-42895: Access of Uninitialized Pointer (CWE-824) CVE-2023-0597: Missing Release of Memory after Effective Lifetime (CWE-401) CVE-2023-1073: Out-of-bounds Write (CWE-787) CVE-2023-1074: Missing Release of Memory after Effective Lifetime (CWE-401) CVE-2023-1075: Access of Resource Using Incompatible Type ('Type Confusion') (CWE-843) CVE-2023-1076: Access of Resource Using Incompatible Type ('Type Confusion') (CWE-843) CVE-2023-1079: Use After Free (CWE-416) CVE-2023-1206: Uncontrolled Resource Consumption (CWE-400) CVE-2023-1249: Use After Free (CWE-416) CVE-2023-1252: Use After Free (CWE-416) CVE-2023-1652: Use After Free (CWE-416) CVE-2023-1855: Use After Free (CWE-416) CVE-2023-1989: Use After Free (CWE-416) CVE-2023-3141: Use After Free (CWE-416) CVE-2023-3161: Incorrect Bitwise Shift of Integer (CWE-1335) CVE-2023-3212: NULL Pointer Dereference (CWE-476) CVE-2023-3268: Out-of-bounds Read (CWE-125) CVE-2023-3358: NULL Pointer Dereference (CWE-476) CVE-2023-3609: Double Free (CWE-415) CVE-2023-3772: NULL Pointer Dereference (CWE-476) CVE-2023-3773: Out-of-bounds Read (CWE-125) CVE-2023-4128: Use After Free (CWE-416) CVE-2023-4155: Time-of-check Time-of-use (TOCTOU) Race Condition (CWE-367) CVE-2023-4194: Access of Resource Using Incompatible Type ('Type Confusion') (CWE-843) CVE-2023-4206: Use After Free (CWE-416) CVE-2023-4207: Use After Free (CWE-416) CVE-2023-4208: Use After Free (CWE-416) CVE-2023-4273: Stack-based Buffer Overflow (CWE-121) CVE-2023-26545: Double Free (CWE-415) CVE-2023-30456: Improperly Implemented Security Check for Standard (CWE-358) CVE-2023-33203: Use After Free (CWE-416) CVE-2023-33951: Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) CVE-2023-33952: Double Free (CWE-415) CVE-2023-35825: Use After Free (CWE-416) CVE-2023-39191: Improper Input Validation (CWE-20)
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