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grant-table feature in Xen through 4.8.x provides false mapping information in certain cases of concurrent unmap calls, which allows backend attackers to obtain sensitive information or gain privileges, aka XSA-218 bug 1.","status":"published","published":"2017-07-05T01:00:00Z","modified":"2024-08-05T17:50:12.743Z","updated_at":"2026-11-02T14:33:13.27226Z"}],"euvd":[{"id":"EUVD-2017-2551","description":"The grant-table feature in Xen through 4.8.x provides false mapping information in certain cases of concurrent unmap calls, which allows backend attackers to obtain sensitive information or gain privileges, aka XSA-218 bug 1.","status":"published","published":"2017-07-05T01:00:00Z","modified":"2024-08-05T17:50:12Z","updated_at":"2026-11-03T02:23:25.281788Z"}],"ghsa":[{"id":"GHSA-r6j9-5wqc-p46g","title":"The grant-table feature in Xen through 4.8.x provides false mapping information in certain cases...","description":"The grant-table feature in Xen through 4.8.x provides false mapping information in certain cases of concurrent unmap calls, which allows backend attackers to obtain sensitive information or gain privileges, aka XSA-218 bug 1.","status":"published","published":"2022-05-13T01:42:01Z","modified":"2023-02-02T05:00:47Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T14:51:02.304407Z"}],"nvd":[{"id":"CVE-2017-10913","description":"The grant-table feature in Xen through 4.8.x provides false mapping information in certain cases of concurrent unmap calls, which allows backend attackers to obtain sensitive information or gain privileges, aka XSA-218 bug 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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-3969-1","title":"xen - security update","status":"published","published":"2017-09-12T00:00:00Z","modified":"2026-03-09T01:19:19.676084Z","updated_at":"2026-11-02T15:46:16.523846Z"},{"id":"SUSE-SU-2017:1795-1","title":"Security update for xen","description":"This update for xen fixes several issues.\n\nThese security issues were fixed:\n\n- CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a null pointer dereference issue which allowed a privileged user inside guest to crash the Qemu process on the host resulting in DoS (bsc#1043297)\n- CVE-2017-9374: Missing free of 's-\u003eipacket', causes a host memory leak, allowing for DoS (bsc#1043074)\n- CVE-2017-10911: blkif responses leaked backend stack data, which allowed unprivileged guest to obtain sensitive information from the host or other guests (XSA-216, bsc#1042863)\n- CVE-2017-10912: Page transfer might have allowed PV guest to elevate privilege (XSA-217, bsc#1042882)\n- CVE-2017-10913, CVE-2017-10914: Races in the grant table unmap code allowed for informations leaks and potentially privilege escalation (XSA-218, bsc#1042893)\n- CVE-2017-10915: Insufficient reference counts during shadow emulation allowed a malicious pair of guest to elevate their privileges to the privileges that XEN runs under (XSA-219, bsc#1042915)\n- CVE-2017-10917: Missing NULL pointer check in event channel poll allows guests to DoS the host (XSA-221, bsc#1042924)\n- CVE-2017-10918: Stale P2M mappings due to insufficient error checking allowed malicious guest to leak information or elevate privileges (XSA-222, bsc#1042931)\n- CVE-2017-10920, CVE-2017-10921, CVE-2017-10922: Grant table operations mishandled reference counts allowing malicious guests to escape (XSA-224, bsc#1042938)\n- CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service (infinite loop) by leveraging an incorrect return value (bsc#1042160)\n- CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture (bsc#1037243)\n- CVE-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count (bsc#1036470)\n- CVE-2017-8905: Xen a failsafe callback, which might have allowed PV guest OS users to execute arbitrary code on the host OS (XSA-215, bsc#1034845).\n\nThese non-security issues were fixed:\n\n- bsc#1031460: Fixed DomU Live Migration\n- bsc#1014136: Fixed kdump SLES12-SP2\n- bsc#1026236: Equalized paravirtualized vs. fully virtualized migration speed\n- bsc#1032148: Ensure that time doesn't goes backwards during live migration of HVM domU\n- bsc#1027519: Included various upstream patches\n","status":"published","published":"2017-07-06T09:40:48Z","modified":"2026-02-04T03:52:49.357865Z","updated_at":"2026-11-02T15:53:44.209561Z"},{"id":"SUSE-SU-2017:1812-1","title":"Security update for xen","description":"This update for xen fixes several issues.\n\nThese security issues were fixed:\n\n- CVE-2017-10911: blkif responses leaked backend stack data, which allowed unprivileged guest to obtain sensitive information from the host or other guests (XSA-216, bsc#1042863)\n- CVE-2017-10912: Page transfer might have allowed PV guest to elevate privilege (XSA-217, bsc#1042882)\n- CVE-2017-10913, CVE-2017-10914: Races in the grant table unmap code allowed for informations leaks and potentially privilege escalation (XSA-218, bsc#1042893)\n- CVE-2017-10915: Insufficient reference counts during shadow emulation allowed a malicious pair of guest to elevate their privileges to the privileges that XEN runs under (XSA-219, bsc#1042915)\n- CVE-2017-10917: Missing NULL pointer check in event channel poll allows guests to DoS the host (XSA-221, bsc#1042924)\n- CVE-2017-10918: Stale P2M mappings due to insufficient error checking allowed malicious guest to leak information or elevate privileges (XSA-222, bsc#1042931)\n- CVE-2017-10922, CVE-2017-10921, CVE-2017-10920: Grant table operations mishandled reference counts allowing malicious guests to escape (XSA-224, bsc#1042938)\n- CVE-2017-10916: PKRU and BND* leakage between vCPU-s might have leaked information to other guests (XSA-220, bsc#1042923)\n- CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service (infinite loop) by leveraging an incorrect return value (bsc#1042160)\n- CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture (bsc#1037243)\n- CVE-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count (bsc#1036470)\n- CVE-2017-8905: Xen a failsafe callback, which might have allowed PV guest OS users to execute arbitrary code on the host OS (XSA-215, bsc#1034845).\n- CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a null pointer dereference issue which allowed a privileged user inside guest to crash the Qemu process on the host resulting in DoS (bsc#1043297)\n- CVE-2017-9374: Missing free of 's-\u003eipacket', causes a host memory leak, allowing for DoS (bsc#1043074)\n\nThese non-security issues were fixed:\n\n- bsc#1031460: Fixed DomU Live Migration\n- bsc#1014136: Fixed kdump SLES12-SP2\n- bsc#1026236: Equalized paravirtualized vs. fully virtualized migration speed\n","status":"published","published":"2017-07-07T09:25:46Z","modified":"2026-02-04T02:23:14.482752Z","updated_at":"2026-11-02T15:53:44.209561Z"}]}}