RHEL 8 : kernel-rt (RHSA-2022:7444)

high Nessus Plugin ID 167095

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Synopsis

The remote Red Hat host is missing one or more security updates for kernel-rt.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:7444 advisory.

- kernel: off-path attacker may inject data or terminate victim's TCP session (CVE-2020-36516)

- kernel: race condition in VT_RESIZEX ioctl when vc_cons[i].d is already NULL leading to NULL pointer dereference (CVE-2020-36558)

- kernel: use-after-free vulnerability in function sco_sock_sendmsg() (CVE-2021-3640)

- kernel: memory leak for large arguments in video_usercopy function in drivers/media/v4l2-core/v4l2-ioctl.c (CVE-2021-30002)

- kernel: smb2_ioctl_query_info NULL pointer dereference (CVE-2022-0168)

- kernel: NULL pointer dereference in udf_expand_file_adinicbdue() during writeback (CVE-2022-0617)

- kernel: swiotlb information leak with DMA_FROM_DEVICE (CVE-2022-0854)

- kernel: uninitialized registers on stack in nft_do_chain can cause kernel pointer leakage to UM (CVE-2022-1016)

- kernel: race condition in snd_pcm_hw_free leading to use-after-free (CVE-2022-1048)

- kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c (CVE-2022-1055)

- kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region (CVE-2022-1158)

- kernel: use-after-free and memory errors in ext4 when mounting and operating on a corrupted image (CVE-2022-1184)

- kernel: KVM: NULL pointer dereference in kvm_dirty_ring_push in virt/kvm/dirty_ring.c (CVE-2022-1263)

- kernel: NULL pointer dereference in x86_emulate_insn may lead to DoS (CVE-2022-1852)

- kernel: buffer overflow in nft_set_desc_concat_parse() (CVE-2022-2078)

- kernel: KVM: NULL pointer dereference in kvm_irq_delivery_to_apic_fast() (CVE-2022-2153)

- kernel: LoadPin bypass via dm-verity table reload (CVE-2022-2503)

- kernel: nf_tables cross-table potential use-after-free may lead to local privilege escalation (CVE-2022-2586)

- kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size() (CVE-2022-2639)

- kernel: use-after-free when psi trigger is destroyed while being polled (CVE-2022-2938)

- kernel: hv_netvsc: NULL pointer dereference in netvsc_get_ethtool_stats() (CVE-2022-3107)

- kernel: net/packet: slab-out-of-bounds access in packet_recvmsg() (CVE-2022-20368)

- kernel: missing DM_TARGET_IMMUTABLE feature flag in verity_target in drivers/md/dm-verity-target.c (CVE-2022-20572)

- kernel: possible to use the debugger to write zero into a location of choice (CVE-2022-21499)

- kernel: nfs_atomic_open() returns uninitialized data instead of ENOTDIR (CVE-2022-24448)

- hw: cpu: Intel: Post-barrier Return Stack Buffer Predictions (CVE-2022-26373)

- kernel: memory leak in drivers/hid/hid-elo.c (CVE-2022-27950)

- kernel: double free in ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c (CVE-2022-28390)

- kernel: use after free in SUNRPC subsystem (CVE-2022-28893)

- kernel: use-after-free due to improper update of reference count in net/sched/cls_u32.c (CVE-2022-29581)

- kernel: DoS in nfqnl_mangle in net/netfilter/nfnetlink_queue.c (CVE-2022-36946)

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 RHEL kernel-rt package based on the guidance in RHSA-2022:7444.

Plugin Details

Severity: High

ID: 167095

File Name: redhat-RHSA-2022-7444.nasl

Version: 1.7

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/8/2022

Updated: 6/26/2024

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

CVSS Score Source: CVE-2022-29581

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules

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: 11/8/2022

Vulnerability Publication Date: 4/2/2021

CISA Known Exploited Vulnerability Due Dates: 7/17/2024

Reference Information

CVE: CVE-2020-36516, CVE-2020-36558, CVE-2021-30002, CVE-2021-3640, CVE-2022-0168, CVE-2022-0617, CVE-2022-0854, CVE-2022-1016, CVE-2022-1048, CVE-2022-1055, CVE-2022-1158, CVE-2022-1184, CVE-2022-1263, CVE-2022-1852, CVE-2022-20368, CVE-2022-20572, CVE-2022-2078, CVE-2022-21499, CVE-2022-2153, CVE-2022-24448, CVE-2022-2503, CVE-2022-2586, CVE-2022-26373, CVE-2022-2639, CVE-2022-27950, CVE-2022-28390, CVE-2022-28893, CVE-2022-2938, CVE-2022-29581, CVE-2022-3107, CVE-2022-36946

CWE: 120, 200, 288, 290, 401, 415, 416, 476, 681, 772, 787, 863, 908, 909

RHSA: 2022:7444

Detections

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