RHEL 8 : kernel (RHSA-2023:4789)

critical Nessus Plugin ID 180238

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:4789 advisory.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c (CVE-2022-42896)

* kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter (CVE-2023-1829)

* kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)

* kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788)

* kernel: when setting font with malicious data by ioctl PIO_FONT, kernel will write memory out of bounds (CVE-2021-33656)

* kernel: save/restore speculative MSRs during S3 suspend/resume (CVE-2023-1637)

* Kernel: bluetooth: Unauthorized management command execution (CVE-2023-2002)

* kernel: OOB access in the Linux kernel's XFS subsystem (CVE-2023-2124)

* hw: amd: Cross-Process Information Leak (CVE-2023-20593)

* kernel: tls: race condition in do_tls_getsockopt may lead to use-after-free or NULL pointer dereference (CVE-2023-28466)

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.

Bug Fix(es):

* Simultaneous writes to a page on xfs can result in zero-byte data (BZ#2184103)

* Invalid character detected by rpminspect in Documentation/translations/zh_CN/process/magic-number.rst (BZ#2208286)

* Low memory deadlock with md devices and external (imsm) metadata handling - requires a kernfs notification backport (BZ#2208542)

* Windows Server 2019 guest randomly pauses with KVM: entry failed, hardware error 0x80000021 (BZ#2211663)

* Marvell 8.7 Bug qedi shutdown handler hangs upon reboot (BZ#2215334)

* aacraid misses interrupts when a CPU is disabled resulting in scsi timeouts and the adapter being unusable until reboot. (BZ#2216499)

* rbd: avoid fast-diff corruption in snapshot-based mirroring [8.9] (BZ#2216770)

* OCS 4.8 cephfs kernel crash : mds_dispatch ceph_handle_snap unable to handle kernel NULL (BZ#2218273)

* FJ8.6 Bug: System panic occurs because the list used by i40e driver is corrupted (BZ#2219262)

* st_gmac tx-checksum offload on vlan is not consistent with st_gmac interface (BZ#2219908)

* Regression of 3b8cc6298724 (blk-cgroup: Optimize blkcg_rstat_flush()) (BZ#2220811)

* refcount_t overflow often happens in mem_cgroup_id_get_online() (BZ#2221011)

* Scheduler update (rhel8.8) (BZ#2221304)

* RHEL8.6 boot panic with message kernel BUG at lib/list_debug.c:28! (BZ#2222247)

* Enable conntrack clash resolution for GRE (BZ#2223543)

* Intel 8.8 BUG SPR perf: Workaround the UPI intel_uncore_has_discovery_tables issue on SPR MCC and LCC (BZ#2225514)

* KVM: x86: fix sending PV IPI (BZ#2226580)

* libceph: harden msgr2.1 frame segment length checks [8.x] (BZ#2227074)

Enhancement(s):

* Mellanox 8.7 FEAT mlx5: It's possible to enable LRO when XDP is active (BZ#2165585)

* Export symbol pci_find_host_bridge (BZ#2225335)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: Critical

ID: 180238

File Name: redhat-RHSA-2023-4789.nasl

Version: 1.4

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 8/29/2023

Updated: 11/7/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2023-44466

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.5

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS Score Source: CVE-2023-35788

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-core, p-cpe:/a:redhat:enterprise_linux:kernel-cross-headers, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-core, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-headers, cpe:/o:redhat:rhel_eus:8.6, p-cpe:/a:redhat:enterprise_linux:kernel-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:python3-perf

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/29/2023

Vulnerability Publication Date: 7/12/2022

Reference Information

CVE: CVE-2021-33656, CVE-2022-42896, CVE-2023-1637, CVE-2023-1829, CVE-2023-2002, CVE-2023-20593, CVE-2023-2124, CVE-2023-28466, CVE-2023-3390, CVE-2023-35788, CVE-2023-44466

CWE: 119, 1239, 125, 200, 250, 416, 787

RHSA: 2023:4789

Detections

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