Description: Debian has reported several vulnerabilities in XBlockOut (xbl), which can be exploited by malicious, local users to escalate their privileges on a vulnerable system.
The vulnerabilities are caused due to boundary errors in the handling of command line arguments and the use of the "XBLOPTIONS" environment variable.
Successful exploitation can result in buffer overflows and may allow execution of arbitrary code with the privileges of the "games" group.
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