CVE-2022-47952
Published on: Not Yet Published
Last Modified on: 01/09/2023 03:20:00 PM UTC
Certain versions of Lxc from Linuxcontainers contain the following vulnerability:
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 has been assigned by
[email protected] to track the vulnerability - currently rated as LOW severity.
CVSS3 Score: 3.3 - LOW
| Attack Vector ⓘ |
Attack Complexity |
Privileges Required |
User Interaction |
|---|---|---|---|
| LOCAL | LOW | LOW | NONE |
| Scope | Confidentiality Impact |
Integrity Impact |
Availability Impact |
| UNCHANGED | LOW | NONE | NONE |
CVE References
| Description | Tags ⓘ | Link |
|---|---|---|
| GitHub - MaherAzzouzi/CVE-2022-47952: LXC Information Disclosure vulnerability. | github.com text/html |
MISC github.com/MaherAzzouzi/CVE-2022-47952 |
| Comment #45 : Bug #1783591 : Bugs : lxc package : Ubuntu | bugs.launchpad.net text/html |
MISC bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591/comments/45 |
| lxc/lxc.spec.in at 0b83d71c2c8f3bac9503f894cd84584f79258bb3 · lxc/lxc · GitHub | github.com text/html |
MISC github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/lxc.spec.in#L274 |
| lxc/lxc_user_nic.c at 0b83d71c2c8f3bac9503f894cd84584f79258bb3 · lxc/lxc · GitHub | github.com text/html |
MISC github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/src/lxc/cmd/lxc_user_nic.c#L1085-L1104 |
Related QID Numbers
- 502626 Alpine Linux Security Update for lxc
- 502629 Alpine Linux Security Update for lxc
- 672727 EulerOS Security Update for lxc (EulerOS-SA-2023-1451)
- 672759 EulerOS Security Update for lxc (EulerOS-SA-2023-1476)
- 672791 EulerOS Security Update for lxc (EulerOS-SA-2023-1532)
- 672818 EulerOS Security Update for lxc (EulerOS-SA-2023-1557)
Exploit/POC from Github
lxc-user-nic in lxc through 5.0.1 is installed setuid root, and may allow local users to infer whether any file exist…
Known Affected Configurations (CPE V2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Linuxcontainers | Lxc | All | All | All | All |
- cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:*:
Social Mentions
| Source | Title | Posted (UTC) |
|---|---|---|
 @CVEreport |
CVE-2022-47952 : lxc-user-nic in lxc through 5.0.1 is installed setuid root, and may allow local users to infer whe… twitter.com/i/web/status/1… | 2023-01-01 06:06:55 |
| @SeYasashi |
github.com/MaherAzzouzi/C… lxcの脆弱性か コンテナから、アクセスできん どうでもよさそう。 | 2023-01-01 09:45:48 |
 /r/netcve |
CVE-2022-47952 | 2023-01-01 06:38:32 |