Detections
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EulerOS 2.0 SP11 : lxc (EulerOS-SA-2023-1785)

low Nessus Plugin ID 175266

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the versions of the lxc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

 - lxc-user-nic in lxc through 5.0.1 is installed setuid root, and may allow local users to infer whether any file exists, even within a protected directory tree, because 'Failed to open' often indicates that a file does not exist, whereas 'does not refer to a network namespace path' often indicates that a file exists.
 NOTE: this is different from CVE-2018-6556 because the CVE-2018-6556 fix design was based on the premise that 'we will report back to the user that the open() failed but the user has no way of knowing why it failed'; however, in many realistic cases, there are no plausible reasons for failing except that the file does not exist. (CVE-2022-47952)

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 lxc packages.

See Also

http://www.nessus.org/u?dbc7f0c3

Plugin Details

Severity: Low

ID: 175266

File Name: EulerOS_SA-2023-1785.nasl

Version: 1.0

Type: local

Published: 5/8/2023

Updated: 5/8/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Low

Base Score: 1.7

Temporal Score: 1.3

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

CVSS Score Source: CVE-2022-47952

CVSS v3

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.9

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:lxc-libs, p-cpe:/a:huawei:euleros:lxc, cpe:/o:huawei:euleros:2.0

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

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 5/8/2023

Vulnerability Publication Date: 1/1/2023

Reference Information

CVE: CVE-2022-47952