{"id":"CLEANSTART-2024-VJ19718","summary":"pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via string quotes a...","details":"Security vulnerability affects the xen package. The pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via string quotes and S-expressions in the bootloader configuration file.","modified":"2026-10-31T16:30:04.948501583Z","published":"2026-10-31T14:19:15.294504Z","upstream":["CVE-2016-9379"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2024/CLEANSTART-2024-VJ19718.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2016-9379"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-9379"}],"affected":[{"package":{"name":"xen","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/xen?arch=x86_64"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.1-r1"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-VJ19718.json"}},{"package":{"name":"xen","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/xen?arch=armv7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.1-r1"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-VJ19718.json"}},{"package":{"name":"xen","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/xen?arch=aarch64"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.1-r1"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-VJ19718.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N"}]}