EulerOS Virtualization 3.0.2.6 : squashfs-tools (EulerOS-SA-2021-2904)

high Nessus Plugin ID 156505

Synopsis

The remote EulerOS Virtualization host is missing a security update.

Description

According to the versions of the squashfs-tools package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

- squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is then used by unsquashfs to create the new file during the unsquash. The filename is not validated for traversal outside of the destination directory, and thus allows writing to locations outside of the destination. (CVE-2021-40153)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected squashfs-tools packages.

See Also

http://www.nessus.org/u?5a19a56f

Plugin Details

Severity: High

ID: 156505

File Name: EulerOS_SA-2021-2904.nasl

Version: 1.2

Type: local

Published: 1/6/2022

Updated: 1/6/2022

Risk Information

CVSS Score Source: CVE-2021-40153

VPR

Risk Factor: Medium

Score: 6

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:squashfs-tools, cpe:/o:huawei:euleros:uvp:3.0.2.6

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/30/2021

Vulnerability Publication Date: 8/27/2021

Reference Information

CVE: CVE-2021-40153