{"id":"CVE-2017-14318","aliases":["ALPINE-CVE-2017-14318","DEBIAN-CVE-2017-14318","DLA-1132-1","DSA-4050-1","EUVD-2017-5821","GHSA-g75p-4v96-pxff","SUSE-SU-2017:2420-1","SUSE-SU-2017:2466-1","SUSE-SU-2017:2519-1","UBUNTU-CVE-2017-14318"],"status":"published","title":"An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles...","description":"An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00354,"percentile":0.29391,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2017-09-12T15:00:00Z","modified":"2026-09-01T20:03:43Z","fixes":[{"ecosystem":"Alpine:v3.10","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.11","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.3","package":"xen","fixed_in":["4.6.3-r9"],"sources":["osv"]},{"ecosystem":"Alpine:v3.4","package":"xen","fixed_in":["4.6.3-r11"],"sources":["osv"]},{"ecosystem":"Alpine:v3.5","package":"xen","fixed_in":["4.7.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.6","package":"xen","fixed_in":["4.8.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.7","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.8","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Alpine:v3.9","package":"xen","fixed_in":["4.9.0-r4"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"xen","fixed_in":["4.8.2+xsa245-0+deb9u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"xen","fixed_in":["4.8.2+xsa245-0+deb9u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"xen","fixed_in":["4.8.2+xsa245-0+deb9u1"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"xen","fixed_in":["4.6.5-0ubuntu1.4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.10","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.11","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.12","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.13","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.14","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-r4"}]}]},{"source":"osv","ecosystem":"Alpine:v3.3","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced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Entry","advisory"]},{"url":"http://xenbits.xen.org/xsa/advisory-232.html","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","fix"]},{"url":"http://www.securityfocus.com/bid/100817","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-14318"},{"url":"https://github.com/advisories/GHSA-g75p-4v96-pxff"},{"url":"https://security.alpinelinux.org/vuln/CVE-2017-14318","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-14318","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2017/suse-su-20172420-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1027519","tags":["report"]},{"url":"https://bugzilla.suse.com/1055695","tags":["report"]},{"url":"https://bugzilla.suse.com/1056278","tags":["report"]},{"url":"https://bugzilla.suse.com/1056280","tags":["report"]},{"url":"https://bugzilla.suse.com/1056281","tags":["report"]},{"url":"https://bugzilla.suse.com/1056282","tags":["report"]},{"url":"https://bugzilla.suse.com/1057358","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2017-14316","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-14317","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-14318","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-14319","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2017/suse-su-20172466-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2017/suse-su-20172519-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-14318","tags":["report"]},{"url":"https://xenbits.xen.org/xsa/advisory-232.html","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-14318","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2017-14318","description":"An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.","status":"published","published":"2017-09-12T15:00:00Z","modified":"2024-08-05T19:20:41.545Z","updated_at":"2026-11-02T14:33:12.267141Z"}],"euvd":[{"id":"EUVD-2017-5821","description":"An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.","status":"published","published":"2017-09-12T15:00:00Z","modified":"2024-08-05T19:20:41Z","updated_at":"2026-11-03T02:23:17.130971Z"}],"ghsa":[{"id":"GHSA-g75p-4v96-pxff","title":"An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles...","description":"An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.","status":"published","published":"2022-05-17T00:19:55Z","modified":"2023-02-03T05:01:23Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:52:58.20473Z"}],"nvd":[{"id":"CVE-2017-14318","description":"An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.","status":"published","published":"2017-09-12T15:29:00.3Z","modified":"2026-06-17T01:05:56.72Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:03:58.85945Z"}],"osv":[{"id":"ALPINE-CVE-2017-14318","description":"An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.","status":"published","published":"2017-09-12T15:29:00.3Z","modified":"2026-06-15T18:18:06.792225186Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:27:46.716249Z"},{"id":"CVE-2017-14318","description":"An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.","status":"published","published":"2017-09-12T15:29:00.3Z","modified":"2026-03-15T21:53:09.896069Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:04.572713Z"},{"id":"DEBIAN-CVE-2017-14318","description":"An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.","status":"published","published":"2017-09-12T15:29:00.3Z","modified":"2026-09-01T20:03:43.797496535Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:28.801885Z"},{"id":"UBUNTU-CVE-2017-14318","description":"An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.","status":"published","published":"2017-09-12T15:29:00Z","modified":"2026-04-22T11:15:32.829212Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:14.122973Z"},{"id":"DLA-1132-1","title":"xen - security update","status":"published","published":"2017-10-11T00:00:00Z","modified":"2026-03-09T01:01:31.219478Z","updated_at":"2026-11-02T15:46:09.336894Z"},{"id":"DSA-4050-1","title":"xen - security update","status":"published","published":"2017-11-28T00:00:00Z","modified":"2026-03-09T01:20:09.351795Z","updated_at":"2026-11-02T15:46:16.523846Z"},{"id":"SUSE-SU-2017:2420-1","title":"Security update for xen","description":"This update for xen fixes several issues.\n\nThese security issues were fixed:\n\n- CVE-2017-14316: Missing bound check in function `alloc_heap_pages` for an\n  internal array allowed attackers using crafted hypercalls to execute\n  arbitrary code within Xen (XSA-231, bsc#1056278)\n- CVE-2017-14318: The function __gnttab_cache_flush missed a check for grant\n  tables, allowing a malicious guest to crash the host or for x86 PV guests to\n  potentially escalate privileges (XSA-232, bsc#1056280)\n- CVE-2017-14317: A race in cxenstored may have cause a double-free allowind for\n  DoS of the xenstored daemon (XSA-233, bsc#1056281).\n- CVE-2017-14319: An error while handling grant mappings allowed malicious or\n  buggy x86 PV guest to escalate its privileges or crash the hypervisor (XSA-234,\n  bsc#1056282).\n\nThese non-security issues were fixed:\n\n- bsc#1057358: Fixed boot into SUSE Linux Enterprise 12.3 with secure boot\n- bsc#1055695: Fixed restoring updates for HVM guests for ballooned domUs\n","status":"published","published":"2017-09-12T15:34:10Z","modified":"2026-02-04T04:34:29.419877Z","updated_at":"2026-11-02T15:53:44.209561Z"},{"id":"SUSE-SU-2017:2466-1","title":"Security update for xen","description":"This update for xen fixes several issues.\n\nThese security issues were fixed:\n\n- CVE-2017-14316: Missing bound check in function `alloc_heap_pages` for an\n  internal array allowed attackers using crafted hypercalls to execute\n  arbitrary code within Xen (XSA-231, bsc#1056278)\n- CVE-2017-14318: The function __gnttab_cache_flush missed a check for grant\n  tables, allowing a malicious guest to crash the host or for x86 PV guests to\n  potentially escalate privileges (XSA-232, bsc#1056280)\n- CVE-2017-14317: A race in cxenstored may have cause a double-free allowind for\n  DoS of the xenstored daemon (XSA-233, bsc#1056281).\n- CVE-2017-14319: An error while handling grant mappings allowed malicious or\n  buggy x86 PV guest to escalate its privileges or crash the hypervisor (XSA-234,\n  bsc#1056282).\n","status":"published","published":"2017-09-14T15:31:22Z","modified":"2026-02-04T04:11:35.160539Z","updated_at":"2026-11-02T15:53:44.209561Z"},{"id":"SUSE-SU-2017:2519-1","title":"Security update for xen","description":"This update for xen fixes several issues.\n\nThese security issues were fixed:\n\n- CVE-2017-14316: Missing bound check in function `alloc_heap_pages` for an\n  internal array allowed attackers using crafted hypercalls to execute\n  arbitrary code within Xen (XSA-231, bsc#1056278)\n- CVE-2017-14318: The function __gnttab_cache_flush missed a check for grant\n  tables, allowing a malicious guest to crash the host or for x86 PV guests to\n  potentially escalate privileges (XSA-232, bsc#1056280)\n- CVE-2017-14317: A race in cxenstored may have cause a double-free allowind for\n  DoS of the xenstored daemon (XSA-233, bsc#1056281).\n- CVE-2017-14319: An error while handling grant mappings allowed malicious or\n  buggy x86 PV guest to escalate its privileges or crash the hypervisor (XSA-234,\n  bsc#1056282).\n\nThese non-security issues were fixed:\n\n- bsc#1055695: Fixed restoring updates for HVM guests for ballooned domUs\n","status":"published","published":"2017-09-18T09:43:51Z","modified":"2026-02-04T04:07:48.298975Z","updated_at":"2026-11-02T15:53:44.209561Z"}]}}