It was discovered that Bundler incorrectly created directories with insecure permissions in /tmp. An attacker could write malicious libraries to this location for later execution.
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "binaries": [ { "binary_version": "1.16.1-1ubuntu0.1~esm1", "binary_name": "bundler" }, { "binary_version": "1.16.1-1ubuntu0.1~esm1", "binary_name": "ruby-bundler" } ] }
{ "cves_map": { "ecosystem": "Ubuntu:Pro:18.04:LTS", "cves": [ { "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H" }, { "type": "Ubuntu", "score": "medium" } ], "id": "CVE-2019-3881" } ] } }