{"id":"ALPINE-CVE-2017-17563","details":"An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode.","modified":"2025-11-19T06:09:22.123076Z","published":"2017-12-12T23:29:00.300Z","upstream":["CVE-2017-17563"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2017-17563"}],"affected":[{"package":{"name":"xen","ecosystem":"Alpine:v3.4","purl":"pkg:apk/alpine/xen?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.6.6-r3"}]}],"versions":["4.0.1-r0","4.0.1-r1","4.0.1-r2","4.0.1-r3","4.1.0-r0","4.1.0-r1","4.1.0-r2","4.1.1-r0","4.1.1-r1","4.1.1-r2","4.1.2-r10","4.1.2-r11","4.1.2-r12","4.1.2-r3","4.1.2-r4","4.1.2-r5","4.1.2-r6","4.1.2-r7","4.1.2-r8","4.1.2-r9","4.1.3-r0","4.2.0-r0","4.2.0-r1","4.2.0-r2","4.2.0-r3","4.2.0-r4","4.2.0-r5","4.2.0-r6","4.2.0-r7","4.2.1-r0","4.2.1-r1","4.2.1-r10","4.2.1-r11","4.2.1-r2","4.2.1-r3","4.2.1-r4","4.2.1-r5","4.2.1-r6","4.2.1-r7","4.2.1-r8","4.2.1-r9","4.2.2-r0","4.2.2-r10","4.2.2-r11","4.2.2-r2","4.2.2-r3","4.2.2-r4","4.2.2-r5","4.2.2-r6","4.2.2-r7","4.2.2-r8","4.2.2-r9","4.3.0-r0","4.3.0-r1","4.3.0-r2","4.3.0-r3","4.3.0-r4","4.3.0-r5","4.3.0-r6","4.3.0-r7","4.3.0-r8","4.3.1-r0","4.3.1-r1","4.3.1-r2","4.3.1-r3","4.3.2-r0","4.3.2-r1","4.3.2-r2","4.3.2-r3","4.3.2-r4","4.3.3-r0","4.4.1-r0","4.4.1-r1","4.4.1-r2","4.4.1-r3","4.4.1-r4","4.4.1-r5","4.4.1-r6","4.4.1-r7","4.4.1-r8","4.4.2-r0","4.4.2-r1","4.5.0-r0","4.5.0-r1","4.5.1-r0","4.5.1-r1","4.5.1-r2","4.5.1-r3","4.6.0-r0","4.6.0-r1","4.6.0-r2","4.6.0-r3","4.6.0-r4","4.6.0-r5","4.6.1-r0","4.6.1-r1","4.6.1-r2","4.6.3-r0","4.6.3-r1","4.6.3-r10","4.6.3-r11","4.6.3-r12","4.6.3-r2","4.6.3-r3","4.6.3-r4","4.6.3-r5","4.6.3-r6","4.6.3-r7","4.6.3-r8","4.6.3-r9","4.6.6-r0","4.6.6-r1","4.6.6-r2"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2017-17563.json"}},{"package":{"name":"xen","ecosystem":"Alpine:v3.5","purl":"pkg:apk/alpine/xen?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.3-r5"}]}],"versions":["4.0.1-r0","4.0.1-r1","4.0.1-r2","4.0.1-r3","4.1.0-r0","4.1.0-r1","4.1.0-r2","4.1.1-r0","4.1.1-r1","4.1.1-r2","4.1.2-r10","4.1.2-r11","4.1.2-r12","4.1.2-r3","4.1.2-r4","4.1.2-r5","4.1.2-r6","4.1.2-r7","4.1.2-r8","4.1.2-r9","4.1.3-r0","4.2.0-r0","4.2.0-r1","4.2.0-r2","4.2.0-r3","4.2.0-r4","4.2.0-r5","4.2.0-r6","4.2.0-r7","4.2.1-r0","4.2.1-r1","4.2.1-r10","4.2.1-r11","4.2.1-r2","4.2.1-r3","4.2.1-r4","4.2.1-r5","4.2.1-r6","4.2.1-r7","4.2.1-r8","4.2.1-r9","4.2.2-r0","4.2.2-r10","4.2.2-r11","4.2.2-r2","4.2.2-r3","4.2.2-r4","4.2.2-r5","4.2.2-r6","4.2.2-r7","4.2.2-r8","4.2.2-r9","4.3.0-r0","4.3.0-r1","4.3.0-r2","4.3.0-r3","4.3.0-r4","4.3.0-r5","4.3.0-r6","4.3.0-r7","4.3.0-r8","4.3.1-r0","4.3.1-r1","4.3.1-r2","4.3.1-r3","4.3.2-r0","4.3.2-r1","4.3.2-r2","4.3.2-r3","4.3.2-r4","4.3.3-r0","4.4.1-r0","4.4.1-r1","4.4.1-r2","4.4.1-r3","4.4.1-r4","4.4.1-r5","4.4.1-r6","4.4.1-r7","4.4.1-r8","4.4.2-r0","4.4.2-r1","4.5.0-r0","4.5.0-r1","4.5.1-r0","4.5.1-r1","4.5.1-r2","4.5.1-r3","4.6.0-r0","4.6.0-r1","4.6.0-r2","4.6.0-r3","4.6.0-r4","4.6.0-r5","4.6.1-r0","4.6.1-r1","4.6.1-r2","4.6.3-r0","4.6.3-r1","4.7.0-r0","4.7.0-r1","4.7.0-r2","4.7.0-r3","4.7.0-r4","4.7.0-r5","4.7.1-r0","4.7.1-r1","4.7.1-r2","4.7.1-r3","4.7.1-r4","4.7.1-r5","4.7.2-r0","4.7.2-r1","4.7.2-r2","4.7.2-r3","4.7.2-r4","4.7.3-r0","4.7.3-r1","4.7.3-r2","4.7.3-r3","4.7.3-r4"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2017-17563.json"}},{"package":{"name":"xen","ecosystem":"Alpine:v3.6","purl":"pkg:apk/alpine/xen?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.8.2-r5"}]}],"versions":["4.0.1-r0","4.0.1-r1","4.0.1-r2","4.0.1-r3","4.1.0-r0","4.1.0-r1","4.1.0-r2","4.1.1-r0","4.1.1-r1","4.1.1-r2","4.1.2-r10","4.1.2-r11","4.1.2-r12","4.1.2-r3","4.1.2-r4","4.1.2-r5","4.1.2-r6","4.1.2-r7","4.1.2-r8","4.1.2-r9","4.1.3-r0","4.2.0-r0","4.2.0-r1","4.2.0-r2","4.2.0-r3","4.2.0-r4","4.2.0-r5","4.2.0-r6","4.2.0-r7","4.2.1-r0","4.2.1-r1","4.2.1-r10","4.2.1-r11","4.2.1-r2","4.2.1-r3","4.2.1-r4","4.2.1-r5","4.2.1-r6","4.2.1-r7","4.2.1-r8","4.2.1-r9","4.2.2-r0","4.2.2-r10","4.2.2-r11","4.2.2-r2","4.2.2-r3","4.2.2-r4","4.2.2-r5","4.2.2-r6","4.2.2-r7","4.2.2-r8","4.2.2-r9","4.3.0-r0","4.3.0-r1","4.3.0-r2","4.3.0-r3","4.3.0-r4","4.3.0-r5","4.3.0-r6","4.3.0-r7","4.3.0-r8","4.3.1-r0","4.3.1-r1","4.3.1-r2","4.3.1-r3","4.3.2-r0","4.3.2-r1","4.3.2-r2","4.3.2-r3","4.3.2-r4","4.3.3-r0","4.4.1-r0","4.4.1-r1","4.4.1-r2","4.4.1-r3","4.4.1-r4","4.4.1-r5","4.4.1-r6","4.4.1-r7","4.4.1-r8","4.4.2-r0","4.4.2-r1","4.5.0-r0","4.5.0-r1","4.5.1-r0","4.5.1-r1","4.5.1-r2","4.5.1-r3","4.6.0-r0","4.6.0-r1","4.6.0-r2","4.6.0-r3","4.6.0-r4","4.6.0-r5","4.6.1-r0","4.6.1-r1","4.6.1-r2","4.6.3-r0","4.6.3-r1","4.7.0-r0","4.7.0-r1","4.7.0-r2","4.7.0-r3","4.7.0-r4","4.7.0-r5","4.7.1-r0","4.7.1-r1","4.7.1-r2","4.7.1-r3","4.7.1-r4","4.7.1-r5","4.7.2-r0","4.8.1-r0","4.8.1-r1","4.8.1-r2","4.8.1-r3","4.8.1-r4","4.8.2-r0","4.8.2-r1","4.8.2-r2","4.8.2-r3"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