{"id":"UBUNTU-CVE-2017-6949","details":"An issue was discovered in CHICKEN Scheme through 4.12.0. When using a nonstandard CHICKEN-specific extension to allocate an SRFI-4 vector in unmanaged memory, the vector size would be used in unsanitised form as an argument to malloc(). With an unexpected size, the impact may have been a segfault or buffer overflow.","modified":"2026-04-22T11:30:32.831324Z","published":"2017-03-16T17:59:00Z","upstream":["CVE-2017-6949"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-6949"},{"type":"REPORT","url":"http://lists.gnu.org/archive/html/chicken-announce/2017-03/msg00000.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-6949"}],"affected":[{"package":{"name":"chicken","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/chicken@4.9.0.1-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.9.0.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"chicken-bin","binary_version":"4.9.0.1-1"},{"binary_name":"libchicken7","binary_version":"4.9.0.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-6949.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}