CVE-1999-1048

Summary

CVE-1999-1048 is a buffer overflow vulnerability affecting older versions of the Bash shell, specifically 2.0.0 and 1.4.17. Attackers can exploit this issue by creating an abnormally large directory name and inserting it into the password prompt via the PS1 environmental variable. The result is a heap-based buffer overflow that allows local attackers to gain elevated privileges. This vulnerability posed a significant threat to systems where users had the ability to change directory names. It underscores the importance of keeping software up-to-date and implementing strict access control policies.

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