CVE-2022-47952 Information disclosure in n/a

What is CVE-2022-47952?

CVE-2022-47952 is a low-severity vulnerability in n/a, published on 1 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-203

Which versions are affected by CVE-2022-47952?

It affects 1 product.

Products include Linuxcontainers Lxc.

How do I fix CVE-2022-47952?

Apply the vendor's patch.

Is CVE-2022-47952 being exploited?

There is no known exploitation of CVE-2022-47952 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Other vulnerabilities in n/a

• CVE-2016-8649 Path traversal in LXC before 1.0.9 and 2.x before 2.0.6 Critical 9.1
• CVE-2016-10124 Privilege escalation in n/a High 8.6
• CVE-2017-18641 Supply chain in n/a High 8.1
• CVE-2013-6441 Privilege escalation in n/a High 7.2
• CVE-2015-1331 Path traversal in n/a Medium 4.9

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2022-47952, DEBIAN-CVE-2022-47952, DLA-3533-1, GHSA-qv29-rjwj-jjrm, OESA-2023-1075, OESA-2023-1076 and 4 more.