CVE-1999-0963

Summary

CVE-1999-0963 is a vulnerability affecting FreeBSD's mount_union command. This issue permits local users to create a symlink attack, bypassing file system access controls and ultimately gaining root privileges. The mount_union command, which is used to mount multiple file systems into a single union file system, becomes a security risk when it fails to adequately validate symlinks during the mounting process. This vulnerability could result in serious system compromises and requires appropriate patches or mitigations to protect against potential attacks.

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