{"id":"CVE-2016-6830","aliases":["DEBIAN-CVE-2016-6830","DLA-643-1","EUVD-2016-7715","GHSA-x8qm-7p8g-qf87","UBUNTU-CVE-2016-6830"],"status":"published","title":"The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers...","description":"The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released).","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.02166,"percentile":0.82357,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119"],"published":"2016-09-30T00:00:00Z","modified":"2026-09-22T07:02:12Z","fixes":[{"ecosystem":"Debian:12","package":"chicken","fixed_in":["4.12.0-0.2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"chicken","fixed_in":["4.12.0-0.2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"chicken","fixed_in":["4.12.0-0.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"chicken","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.0-0.2"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"chicken","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.0-0.2"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"chicken","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.0-0.2"}]}]},{"source":"osv","ecosystem":"Debian:7","package":"chicken","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.0-1+deb7u1"}]}],"versions":["4.7.0-1"],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"chicken","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.9.0.1-1"]}],"products":[{"vendor":"call-cc","product":"chicken"}],"references":[{"url":"http://www.securityfocus.com/bid/92550","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"http://lists.nongnu.org/archive/html/chicken-announce/2016-08/msg00001.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Patch","Vendor Advisory","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-6830"},{"url":"https://github.com/advisories/GHSA-x8qm-7p8g-qf87"},{"url":"https://security-tracker.debian.org/tracker/CVE-2016-6830","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2016-6830","tags":["report"]},{"url":"http://www.openwall.com/lists/oss-security/2016/08/18/2","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-6830","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2016-6830","description":"The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released).","status":"published","published":"2017-01-10T15:00:00Z","modified":"2024-08-06T01:43:38.181Z","updated_at":"2026-11-02T14:33:34.815789Z"}],"euvd":[{"id":"EUVD-2016-7715","description":"The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released).","status":"published","published":"2017-01-10T15:00:00Z","modified":"2024-08-06T01:43:38Z","updated_at":"2026-11-03T02:22:35.048987Z"}],"ghsa":[{"id":"GHSA-x8qm-7p8g-qf87","title":"The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers...","description":"The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released).","status":"published","published":"2022-05-17T03:05:24Z","modified":"2023-01-27T05:06:55Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:43:00.840976Z"}],"nvd":[{"id":"CVE-2016-6830","description":"The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released).","status":"published","published":"2017-01-10T15:59:00.457Z","modified":"2026-06-17T00:51:51.133Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:03:33.686843Z"}],"osv":[{"id":"CVE-2016-6830","description":"The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released).","status":"published","published":"2017-01-10T15:59:00.457Z","modified":"2026-03-14T09:20:27.668923Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:02.776224Z"},{"id":"DEBIAN-CVE-2016-6830","description":"The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released).","status":"published","published":"2017-01-10T15:59:00.457Z","modified":"2026-09-22T07:02:12.026981701Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:27.910042Z"},{"id":"UBUNTU-CVE-2016-6830","description":"The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released).","status":"published","published":"2017-01-10T15:59:00Z","modified":"2026-04-22T10:55:08.277365Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:12.642042Z"},{"id":"DLA-643-1","title":"chicken - security update","status":"published","published":"2016-09-30T00:00:00Z","modified":"2026-03-09T02:09:20.75604Z","updated_at":"2026-11-02T15:46:13.207219Z"}]}}