Rocky Linux 8 : kernel (RLSA-2021:4356)

high Nessus Plugin ID 157815

Synopsis

The remote Rocky Linux host is missing one or more security updates.

Description

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2021:4356 advisory.

- Improper access control in BlueZ may allow an authenticated user to potentially enable information disclosure via adjacent access. (CVE-2021-0129)

- A use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user calls ioct HCIUNBLOCKADDR or other way triggers race condition of the call hci_unregister_dev() together with one of the calls hci_sock_blacklist_add(), hci_sock_blacklist_del(), hci_get_conn_info(), hci_get_auth_info(). A privileged local user could use this flaw to crash the system or escalate their privileges on the system. This flaw affects the Linux kernel versions prior to 5.13-rc5. (CVE-2021-3573)

- A flaw was found in the Linux kernel netfilter implementation in versions prior to 5.5-rc7. A user with root (CAP_SYS_ADMIN) access is able to panic the system when issuing netfilter netflow commands.
(CVE-2021-3635)

- An issue was discovered in fs/fuse/fuse_i.h in the Linux kernel before 5.11.8. A stall on CPU can occur because a retry loop continually finds the same bad inode, aka CID-775c5033a0d1. (CVE-2021-28950)

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

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 157815

File Name: rocky_linux_RLSA-2021-4356.nasl

Version: 1.5

Type: local

Family: Rocky Linux Local Security Checks

Published: 2/9/2022

Updated: 1/16/2024

Supported Sensors: Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.4

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

CVSS Score Source: CVE-2021-3573

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

CVSS Score Source: CVE-2021-3600

Vulnerability Information

CPE: p-cpe:/a:rocky:linux:kernel-rt-devel, p-cpe:/a:rocky:linux:kernel-debug-modules, p-cpe:/a:rocky:linux:kernel-debug-core, p-cpe:/a:rocky:linux:kernel-rt-debug-modules, p-cpe:/a:rocky:linux:kernel-cross-headers, p-cpe:/a:rocky:linux:kernel-debuginfo-common-aarch64, p-cpe:/a:rocky:linux:kernel-devel, p-cpe:/a:rocky:linux:python3-perf, p-cpe:/a:rocky:linux:kernel-debug-devel, p-cpe:/a:rocky:linux:kernel-debuginfo-common-x86_64, p-cpe:/a:rocky:linux:kernel-rt-core, p-cpe:/a:rocky:linux:kernel-rt-debuginfo, cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:kernel, p-cpe:/a:rocky:linux:kernel-rt-debug-core, p-cpe:/a:rocky:linux:kernel-modules-extra, p-cpe:/a:rocky:linux:kernel-rt-debuginfo-common-x86_64, p-cpe:/a:rocky:linux:kernel-debug, p-cpe:/a:rocky:linux:python3-perf-debuginfo, p-cpe:/a:rocky:linux:kernel-rt-modules, p-cpe:/a:rocky:linux:kernel-tools-libs-devel, p-cpe:/a:rocky:linux:kernel-debug-modules-extra, p-cpe:/a:rocky:linux:kernel-rt, p-cpe:/a:rocky:linux:kernel-rt-modules-extra, p-cpe:/a:rocky:linux:kernel-rt-debug-modules-extra, p-cpe:/a:rocky:linux:bpftool, p-cpe:/a:rocky:linux:kernel-tools-libs, p-cpe:/a:rocky:linux:kernel-core, p-cpe:/a:rocky:linux:kernel-abi-stablelists, p-cpe:/a:rocky:linux:kernel-modules, p-cpe:/a:rocky:linux:kernel-tools, p-cpe:/a:rocky:linux:perf-debuginfo, p-cpe:/a:rocky:linux:kernel-debug-debuginfo, p-cpe:/a:rocky:linux:kernel-headers, p-cpe:/a:rocky:linux:kernel-rt-debug-debuginfo, p-cpe:/a:rocky:linux:kernel-tools-debuginfo, p-cpe:/a:rocky:linux:kernel-rt-debug, p-cpe:/a:rocky:linux:bpftool-debuginfo, p-cpe:/a:rocky:linux:perf, p-cpe:/a:rocky:linux:kernel-rt-debug-devel, p-cpe:/a:rocky:linux:kernel-debuginfo

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/16/2021

Vulnerability Publication Date: 3/20/2021

Reference Information

CVE: CVE-2021-0129, CVE-2021-28950, CVE-2021-3573, CVE-2021-3600, CVE-2021-3635

Detections

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