{"id":"USN-7969-1","summary":"crawl vulnerability","details":"David Mendenhall discovered that Dungeon Crawl Stone Soup was incorrectly\nhandling Lua bytecode embedded in an uploaded .crawlrc file. An attacker\ncould possibly use this issue to execute arbitrary code.","modified":"2026-06-25T13:32:31.539883857Z","published":"2026-01-19T19:34:58Z","related":["UBUNTU-CVE-2020-11722"],"upstream":["UBUNTU-CVE-2020-11722"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7969-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-11722"}],"affected":[{"package":{"name":"crawl","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/crawl?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:0.17.1-1ubuntu0.1~esm1"}]}],"versions":["2:0.16.1-1","2:0.16.2-1","2:0.17.0-1","2:0.17.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"crawl","binary_version":"2:0.17.1-1ubuntu0.1~esm1"},{"binary_version":"2:0.17.1-1ubuntu0.1~esm1","binary_name":"crawl-common"},{"binary_name":"crawl-tiles","binary_version":"2:0.17.1-1ubuntu0.1~esm1"},{"binary_name":"crawl-tiles-data","binary_version":"2:0.17.1-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"id":"CVE-2020-11722","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7969-1.json"}},{"package":{"name":"crawl","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/crawl?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:0.21.1-1ubuntu0.1~esm1"}]}],"versions":["2:0.20.1-1","2:0.21.0-1","2:0.21.1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2:0.21.1-1ubuntu0.1~esm1","binary_name":"crawl"},{"binary_name":"crawl-common","binary_version":"2:0.21.1-1ubuntu0.1~esm1"},{"binary_version":"2:0.21.1-1ubuntu0.1~esm1","binary_name":"crawl-tiles"},{"binary_name":"crawl-tiles-data","binary_version":"2:0.21.1-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"id":"CVE-2020-11722","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7969-1.json"}},{"package":{"name":"crawl","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/crawl?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:0.24.0-1ubuntu0.1~esm1"}]}],"versions":["2:0.23.2-1","2:0.24.0-1","2:0.24.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"crawl","binary_version":"2:0.24.0-1ubuntu0.1~esm1"},{"binary_name":"crawl-common","binary_version":"2:0.24.0-1ubuntu0.1~esm1"},{"binary_version":"2:0.24.0-1ubuntu0.1~esm1","binary_name":"crawl-tiles"},{"binary_name":"crawl-tiles-data","binary_version":"2:0.24.0-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7969-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:20.04:LTS","cves":[{"id":"CVE-2020-11722","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"medium","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.5"}