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Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2022-9088)

high Nessus Plugin ID 157291

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Synopsis

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

Description

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-9088 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 flaw was found in the Linux kernel's Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to conf (CVE-2021-3752)

 - A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality. (CVE-2021-3753)

 - kernel: In Overlayfs missing a check for a negative dentry before calling vfs_rename() (CVE-2021-20321)

 - In ep_loop_check_proc of eventpoll.c, there is a possible way to corrupt memory due to a use after free.
 This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
 A-204573007References: Upstream kernel (CVE-2021-1048)

 - kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)

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.

See Also

https://linux.oracle.com/errata/ELSA-2022-9088.html

Plugin Details

Severity: High

ID: 157291

File Name: oraclelinux_ELSA-2022-9088.nasl

Version: 1.7

Type: local

Agent: unix

Published: 2/1/2022

Updated: 4/25/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.9

Temporal Score: 6.5

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

CVSS Score Source: CVE-2021-3752

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.2

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:F/RL:O/RC:C

CVSS Score Source: CVE-2021-1048

Vulnerability Information

CPE: cpe:/o:oracle:linux:6, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek-debug, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek-firmware

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/1/2022

Vulnerability Publication Date: 1/11/2021

CISA Known Exploited Vulnerability Due Dates: 6/13/2022

Reference Information

CVE: CVE-2021-0129, CVE-2021-1048, CVE-2021-20321, CVE-2021-3752, CVE-2021-3753, CVE-2021-4155