CVE-2021-3762: redhat clair Path Traversal

Vulnerability summary

CVE-2021-3762 is a critical (CVSS 9.8) Path Traversal vulnerability in redhat clair. EPSS estimates a 4.81% chance of exploitation in the next 30 days, higher than 91.8% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 03-03-2022
   PublishedVulnerability first disclosed.
2. 03-08-2024
   Last modifiedVulnerability information updated.

Description

A directory traversal vulnerability was found in the ClairCore engine of Clair. An attacker can exploit this by supplying a crafted container image which, when scanned by Clair, allows for arbitrary file write on the filesystem, potentially allowing for remote code execution.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.