CVE-1999-1162

Summary

CVE-1999-1162 is a denial-of-service vulnerability affecting the passwd utility in SCO UNIX 4.0 and earlier versions. An attacker can exploit this flaw to prevent users from logging into the system, causing a denial of service condition. The exact method of exploitation involves manipulation of the password file format, rendering it unreadable for the authenticating daemon. This issue poses a significant risk to systems relying on the unaffected versions for user authentication. System administrators are advised to update to a patched version as soon as possible to mitigate this risk.

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