Detections
Analytics

Alpine: multiple lxc packages: security update to 5.0.1-r1 (deprecated)

low Tenable Cloud Security Plugin ID 400042

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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)

See Also

https://git.alpinelinux.org/aports/commit/?id=0ce5dfcbebc5dbb6ac0c1da4cbfc175778ab2fb5

https://git.alpinelinux.org/aports/commit/?id=43d15a788e61ed6c504958ed8cee0b39fb567d91

Plugin Details

Severity: Low

ID: 400042

Version: Revision 1.41

Type: Local

Published: 1/15/2023

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/15/2023

Vulnerability Publication Date: 1/1/2023

Reference Information

CVE: CVE-2022-47952