A vulnerability classified as critical was found in libpod up to 1.5.x. This vulnerability affects some unknown processing of the component Podman. The manipulation with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Podman in libpod before 1.6.0. It resolves a symlink in the host context during a copy operation from the container to the host, because an undesired glob operation occurs. An attacker could create a container image containing particular symlinks that, when copied by a victim user to the host filesystem, may overwrite existing files with others from the host.

The weakness was disclosed 10/28/2019. This vulnerability was named CVE-2019-18466 since 10/28/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Upgrading to version 1.6.0 eliminates this vulnerability.

Productinfo

Name

• libpod

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5

License

• open-source

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