CVE-2020-27348 — snapcraft may build snaps with incorrect LD_LIBRARY_PATH

Affected: Canonical snapcraft

In some conditions, a snap package built by snapcraft includes the current directory in LD_LIBRARY_PATH, allowing a malicious snap to gain code execution within the context of another snap if both plug the home interface or similar. This issue affects snapcraft versions prior to 4.4.4, prior to 2.43.1+16.04.1, and prior to 2.43.1+18.04.1.

USN-4661-1 — snapcraft vulnerability

Affected: Ubuntu:16.04:LTS: snapcraft, Ubuntu:18.04:LTS: snapcraft

It was discovered that Snapcraft includes the current directory when configuring LD_LIBRARY_PATH for application commands. If a user were tricked into installing a malicious snap or downloading a malicious library, under certain circumstances an attacker could exploit this to affect strict mode snaps that have access to the library and when launched from the directory containing the library.

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CVE-2020-27348 — snapcraft may build snaps with incorrect LD_LIBRARY_PATH

USN-4661-1 — snapcraft vulnerability