RHEL 8 : kernel-rt (RHSA-2021:1739)

high Nessus Plugin ID 149660

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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-2021:1739 advisory.

- kernel: use-after-free caused by a malicious USB device in the drivers/usb/misc/adutux.c driver (CVE-2019-19523)

- kernel: use-after-free bug caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver (CVE-2019-19528)

- kernel: possible out of bounds write in kbd_keycode of keyboard.c (CVE-2020-0431)

- kernel: NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs in drivers/media/usb/gspca/ov519.c (CVE-2020-11608)

- kernel: DoS by corrupting mountpoint reference counter (CVE-2020-12114)

- kernel: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)

- kernel: Improper input validation in some Intel(R) Graphics Drivers (CVE-2020-12363)

- kernel: Null pointer dereference in some Intel(R) Graphics Drivers (CVE-2020-12364)

- kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c (CVE-2020-12464)

- kernel: buffer uses out of index in ext3/4 filesystem (CVE-2020-14314)

- kernel: Use After Free vulnerability in cgroup BPF component (CVE-2020-14356)

- kernel: NULL pointer dereference in serial8250_isa_init_ports function in drivers/tty/serial/8250/8250_core.c (CVE-2020-15437)

- kernel: umask not applied on filesystem without ACL support (CVE-2020-24394)

- kernel: TOCTOU mismatch in the NFS client code (CVE-2020-25212)

- kernel: incomplete permission checking for access to rbd devices (CVE-2020-25284)

- kernel: race condition between hugetlb sysctl handlers in mm/hugetlb.c (CVE-2020-25285)

- kernel: improper input validation in ppp_cp_parse_cr function leads to memory corruption and read overflow (CVE-2020-25643)

- kernel: perf_event_parse_addr_filter memory (CVE-2020-25704)

- kernel: use-after-free in kernel midi subsystem (CVE-2020-27786)

- kernel: child process is able to access parent mm through hfi dev file handle (CVE-2020-27835)

- kernel: slab-out-of-bounds read in fbcon (CVE-2020-28974)

- kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent (CVE-2020-35508)

- kernel: use after free in tun_get_user of tun.c could lead to local escalation of privilege (CVE-2021-0342)

- kernel: In pfkey_dump() dplen and splen can both be specified to access the xfrm_address_t structure out of bounds (CVE-2021-0605)

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: High

ID: 149660

File Name: redhat-RHSA-2021-1739.nasl

Version: 1.8

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 5/19/2021

Updated: 1/23/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2020-25643

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/RL:O/RC:C

CVSS Score Source: CVE-2020-27786

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:rhel_aus:8.4, cpe:/o:redhat:rhel_aus:8.6, cpe:/o:redhat:rhel_e4s:8.4, cpe:/o:redhat:rhel_e4s:8.6, cpe:/o:redhat:rhel_eus:8.4, cpe:/o:redhat:rhel_eus:8.6, cpe:/o:redhat:rhel_tus:8.4, cpe:/o:redhat:rhel_tus:8.6, p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, 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-debug-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra, 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-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/18/2021

Vulnerability Publication Date: 11/13/2019

Reference Information

CVE: CVE-2019-19523, CVE-2019-19528, CVE-2020-0431, CVE-2020-11608, CVE-2020-12114, CVE-2020-12362, CVE-2020-12464, CVE-2020-14314, CVE-2020-14356, CVE-2020-15437, CVE-2020-24394, CVE-2020-25212, CVE-2020-25284, CVE-2020-25285, CVE-2020-25643, CVE-2020-25704, CVE-2020-27786, CVE-2020-27835, CVE-2020-28974, CVE-2020-35508, CVE-2021-0342

CWE: 119, 125, 190, 20, 284, 362, 367, 400, 401, 416, 476, 665, 732

RHSA: 2021:1739

Detections

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