Integer overflow

Integer overflow in the pipebuildwritebuffer function sys/kern/syspipe.c in the direct write optimization feature in the pipe implementation in FreeBSD 7.1 through 7.2 and 6.3 through 6.4 allows local users to bypass virtual-to-physical address lookups and read sensitive information in memory pag...

CVE-2009-1935

CVE-2009-1935 describes an integer overflow in FreeBSD’s pipe_build_write_buffer (sys/kern/sys_pipe.c) within the pipe’s direct write optimization. Affected are FreeBSD 7.1–7.2 and 6.3–6.4. The issue allows local users to bypass virtual-to-physical address lookups and read sensitive data from mem...