FreeBSD Security Advisory FreeBSD-SA-00:41 - The ELF image activator did not perform sufficient sanity checks on the ELF image header, and when confronted with an invalid or truncated header it suffered a sign overflow bug which caused the CPU to enter into a very long loop in the kernel. The system will appear to lock up for an extended period of time before control returns. This bug is exploitable by unprivileged local users
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