{"id":"CVE-2009-1935","aliases":["EUVD-2009-1930","GHSA-c36p-gqxq-hcgq"],"status":"published","title":"Integer overflow in the pipe_build_write_buffer function (sys/kern/sys_pipe.c) in the direct...","description":"Integer overflow in the pipe_build_write_buffer function (sys/kern/sys_pipe.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 pages via unspecified vectors.","severity":{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:C/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00436,"percentile":0.38132,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-189"],"published":"2009-06-18T18:00:00Z","modified":"2026-06-16T23:08:23Z","products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/51109","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://security.freebsd.org/patches/SA-09:09/pipe.patch","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/35279","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://secunia.com/advisories/35398","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://osvdb.org/55044","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.securitytracker.com/id?1022365","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://security.freebsd.org/advisories/FreeBSD-SA-09:09.pipe.asc","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-1935"},{"url":"https://github.com/advisories/GHSA-c36p-gqxq-hcgq"}],"sources":{"cve":[{"id":"CVE-2009-1935","description":"Integer overflow in the pipe_build_write_buffer function (sys/kern/sys_pipe.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 pages via unspecified vectors.","status":"published","published":"2009-06-18T18:00:00Z","modified":"2024-08-07T05:27:54.929Z","updated_at":"2026-11-02T14:33:25.126493Z"}],"euvd":[{"id":"EUVD-2009-1930","description":"Integer overflow in the pipe_build_write_buffer function (sys/kern/sys_pipe.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 pages via unspecified vectors.","status":"published","published":"2009-06-18T18:00:00Z","modified":"2024-08-07T05:27:54Z","updated_at":"2026-11-03T01:39:19.419771Z"}],"ghsa":[{"id":"GHSA-c36p-gqxq-hcgq","title":"Integer overflow in the pipe_build_write_buffer function (sys/kern/sys_pipe.c) in the direct...","description":"Integer overflow in the pipe_build_write_buffer function (sys/kern/sys_pipe.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 pages via unspecified vectors.","status":"published","published":"2022-05-02T03:29:59Z","modified":"2023-01-31T05:07:41Z","updated_at":"2026-11-02T14:49:15.572722Z"}],"nvd":[{"id":"CVE-2009-1935","description":"Integer overflow in the pipe_build_write_buffer function (sys/kern/sys_pipe.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 pages via unspecified vectors.","status":"published","published":"2009-06-18T18:30:00.407Z","modified":"2026-06-16T23:08:23.453Z","cvss":[{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:C/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:01:35.733785Z"}]}}