Ubuntu Security Notice 5720-1 - It was discovered that Zstandard was not properly managing file permissions when generating output files. A local attacker could possibly use this issue to cause a race condition and gain unauthorized access to sensitive data.
873c2b5b031557838c402199683cc5d5a312d2061658d759241fbaca1ed492f8
Ubuntu Security Notice 4760-1 - It was discovered that libzstd incorrectly handled file permissions. A local attacker could possibly use this issue to access certain files, contrary to expectations.
da231c5b59cf607585e005397293dd5030a9ea4cd1b95900c27b92b301af5ec2