{"id":"CVE-2019-17344","aliases":["DEBIAN-CVE-2019-17344","EUVD-2019-7755","GHSA-q4jv-8wfr-4pf8","SUSE-RU-2019:2767-1","SUSE-SU-2019:14199-1","SUSE-SU-2019:14201-1","SUSE-SU-2019:2753-1","SUSE-SU-2019:2769-1","SUSE-SU-2019:2783-1","SUSE-SU-2020:0388-1","UBUNTU-CVE-2019-17344"],"status":"published","title":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of...","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE 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Advisory","advisory"]},{"url":"https://xenbits.xen.org/xsa/advisory-290.html","tags":["x_refsource_MISC","x_transferred","Mitigation","Patch","Vendor Advisory","fix","report"]},{"url":"http://www.openwall.com/lists/oss-security/2019/10/25/3","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://www.debian.org/security/2020/dsa-4602","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://seclists.org/bugtraq/2020/Jan/21","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-17344"},{"url":"https://github.com/advisories/GHSA-q4jv-8wfr-4pf8"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-17344","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/-2019-2767/suse-ru-20192767-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1027519","tags":["report"]},{"url":"https://bugzilla.suse.com/1126140","tags":["report"]},{"url":"https://bugzilla.suse.com/1126141","tags":["report"]},{"url":"https://bugzilla.suse.com/1126192","tags":["report"]},{"url":"https://bugzilla.suse.com/1126195","tags":["report"]},{"url":"https://bugzilla.suse.com/1126196","tags":["report"]},{"url":"https://bugzilla.suse.com/1126197","tags":["report"]},{"url":"https://bugzilla.suse.com/1126198","tags":["report"]},{"url":"https://bugzilla.suse.com/1126201","tags":["report"]},{"url":"https://bugzilla.suse.com/1127400","tags":["report"]},{"url":"https://bugzilla.suse.com/1129642","tags":["report"]},{"url":"https://bugzilla.suse.com/1131811","tags":["report"]},{"url":"https://bugzilla.suse.com/1133818","tags":["report"]},{"url":"https://bugzilla.suse.com/1137717","tags":["report"]},{"url":"https://bugzilla.suse.com/1138294","tags":["report"]},{"url":"https://bugzilla.suse.com/1138563","tags":["report"]},{"url":"https://bugzilla.suse.com/1145240","tags":["report"]},{"url":"https://bugzilla.suse.com/1145774","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12126","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12127","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12130","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-11091","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17340","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17341","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17342","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17343","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17344","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17345","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17346","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17347","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17348","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17349","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-201914199-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1135905","tags":["report"]},{"url":"https://bugzilla.suse.com/1143797","tags":["report"]},{"url":"https://bugzilla.suse.com/1145652","tags":["report"]},{"url":"https://bugzilla.suse.com/1146874","tags":["report"]},{"url":"https://bugzilla.suse.com/1149813","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12067","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12068","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12155","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-14378","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-15890","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-201914201-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1047675","tags":["report"]},{"url":"https://bugzilla.suse.com/1130680","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2017-10806","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-20815","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-20192753-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1111331","tags":["report"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-20192769-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-20192783-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20200388-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1115045","tags":["report"]},{"url":"https://bugzilla.suse.com/1152497","tags":["report"]},{"url":"https://bugzilla.suse.com/1154448","tags":["report"]},{"url":"https://bugzilla.suse.com/1154456","tags":["report"]},{"url":"https://bugzilla.suse.com/1154458","tags":["report"]},{"url":"https://bugzilla.suse.com/1154461","tags":["report"]},{"url":"https://bugzilla.suse.com/1155945","tags":["report"]},{"url":"https://bugzilla.suse.com/1157888","tags":["report"]},{"url":"https://bugzilla.suse.com/1158003","tags":["report"]},{"url":"https://bugzilla.suse.com/1158004","tags":["report"]},{"url":"https://bugzilla.suse.com/1158005","tags":["report"]},{"url":"https://bugzilla.suse.com/1158006","tags":["report"]},{"url":"https://bugzilla.suse.com/1158007","tags":["report"]},{"url":"https://bugzilla.suse.com/1161181","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12207","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-19965","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-11135","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-18420","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-18421","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-18424","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-18425","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-19577","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-19578","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-19579","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-19580","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-19581","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-19583","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-7211","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2019-17344","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-17344","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-17344","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates.","status":"published","published":"2019-10-08T00:02:40Z","modified":"2024-08-05T01:40:15.147Z","updated_at":"2026-11-02T14:20:24.989116Z"}],"euvd":[{"id":"EUVD-2019-7755","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates.","status":"published","published":"2019-10-08T00:02:40Z","modified":"2024-08-05T01:40:15Z","updated_at":"2026-11-03T02:40:30.328063Z"}],"ghsa":[{"id":"GHSA-q4jv-8wfr-4pf8","title":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of...","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates.","status":"published","published":"2022-05-24T16:58:10Z","modified":"2023-01-28T05:07:48Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20","CWE-662"],"updated_at":"2026-11-02T14:44:34.529278Z"}],"nvd":[{"id":"CVE-2019-17344","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates.","status":"published","published":"2019-10-08T01:15:10.687Z","modified":"2026-06-17T02:23:46.05Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/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-662"],"updated_at":"2026-11-02T14:05:31.019577Z"}],"osv":[{"id":"CVE-2019-17344","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates.","status":"published","published":"2019-10-08T01:15:10.687Z","modified":"2026-03-14T09:32:11.765761Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:11.673963Z"},{"id":"DEBIAN-CVE-2019-17344","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates.","status":"published","published":"2019-10-08T01:15:10.687Z","modified":"2026-09-21T07:02:28.16772837Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:31.867036Z"},{"id":"UBUNTU-CVE-2019-17344","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates.","status":"published","published":"2019-10-08T01:15:00Z","modified":"2026-04-22T12:13:59.871443Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:20.325378Z"},{"id":"SUSE-RU-2019:2767-1","title":"Recommended update for xen","description":"This update for xen to version 4.10.4 fixes the following issues:\n\n- Fixed an issue where libxenlight could not restore domain vsa6535522 on live migration\n  (bsc#1133818).\n- Fixed an HPS bug which did not allow to install Windows Server 2016 with 2 CPUs setting or above\n  (bsc#1137717).\n- Fixed an issue where libxenlight could not create new domain (bsc#1131811).\n- Fixed an issue where Xen could not pre-allocate 1 shadow page (bsc#1145240).\n- Fixed an issue where attached pci devices were lost after reboot (bsc#1129642).\n- Fixed a segmentation fault in Libvrtd during live migration to a VM (bsc#1145774). \n- Xenpvnetboot is now ported correctly to Python 3 (bsc#1138563).\n","status":"published","published":"2019-10-24T10:23:00Z","modified":"2026-02-04T03:17:31.235569Z","updated_at":"2026-11-02T15:53:41.276824Z"},{"id":"SUSE-SU-2019:14199-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator\n  which could have led to Denial of Service (bsc#1149813).\n- CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of \n  service (bsc#1146874).\n- CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU \n  emulator which could have led to execution of  arbitrary code with privileges of the \n  QEMU process (bsc#1143797).\n- CVE-2019-12067: Fixed a null pointer dereference which could have led to denial of service (bsc#1145652).\n- CVE-2019-12155: Fixed a null pointer dereference in QXL VGA card emulator of QEMU which\n  could have led to denial of service (bsc#1135905).\n  ","status":"published","published":"2019-10-24T11:23:17Z","modified":"2026-02-04T03:45:58.326397Z","updated_at":"2026-11-02T15:53:46.44301Z"},{"id":"SUSE-SU-2019:14201-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator\n  which could have led to Denial of Service (bsc#1149813).\n- CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of \n  service (bsc#1146874).\n- CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU \n  emulator which could have led to execution of  arbitrary code with privileges of the \n  QEMU process (bsc#1143797).\n- CVE-2019-12067: Fixed a null pointer dereference which could have led to denial of service (bsc#1145652).\n- CVE-2019-12155: Fixed a null pointer dereference in QXL VGA card emulator of QEMU which\n  could have led to denial of service (bsc#1135905).\n- CVE-2018-20815: Fixed a heap buffer overflow while loading device tree blob (bsc#1130680).\n- CVE-2017-10806: Fixed a stack buffer overflow in debug logging (bsc#1047675).\n  ","status":"published","published":"2019-10-25T12:28:21Z","modified":"2026-02-04T04:32:52.013199Z","updated_at":"2026-11-02T15:53:46.44301Z"},{"id":"SUSE-SU-2019:2753-1","title":"Security update for xen","description":"This update for xen to version 4.11.2 fixes the following issues:\n\nSecurity issues fixed: \t  \n\n- CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator\n  which could have led to Denial of Service (bsc#1149813).\n- CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of \n  service (bsc#1146874).\n- CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU \n  emulator which could have led to execution of  arbitrary code with privileges of the \n  QEMU process (bsc#1143797).\n\nOther issues fixed: \n\n- Fixed an HPS bug which did not allow to install Windows Server 2016 with 2 CPUs setting or above\n  (bsc#1137717).\n- Fixed a segmentation fault in Libvrtd during live migration to a VM (bsc#1145774). \n- Fixed an issue where libxenlight could not create new domain (bsc#1131811).\n- Fixed an issue where attached pci devices were lost after reboot (bsc#1129642).\n- Fixed an issue where Xen could not pre-allocate 1 shadow page (bsc#1145240).\n","status":"published","published":"2019-10-23T11:45:48Z","modified":"2026-02-04T03:34:49.387031Z","updated_at":"2026-11-02T15:53:47.06185Z"},{"id":"SUSE-SU-2019:2769-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\nSecurity issues fixed: \t  \n\n- CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator\n  which could have led to Denial of Service (bsc#1149813).\n- CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of \n  service (bsc#1146874).\n- CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU \n  emulator which could have led to execution of  arbitrary code with privileges of the \n  QEMU process (bsc#1143797).\n\nOther issue fixed: \n\n- Fixed an issue where libxenlight could not restore domain vsa6535522 on live migration (bsc#1133818).\n ","status":"published","published":"2019-10-24T11:23:02Z","modified":"2026-02-04T02:32:59.16303Z","updated_at":"2026-11-02T15:53:47.06185Z"},{"id":"SUSE-SU-2019:2783-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\t  \n- CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator\n  which could have led to Denial of Service (bsc#1149813).\n- CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of \n  service (bsc#1146874).\n- CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU \n  emulator which could have led to execution of  arbitrary code with privileges of the \n  QEMU process (bsc#1143797).\n ","status":"published","published":"2019-10-25T12:28:11Z","modified":"2026-02-04T03:12:37.744857Z","updated_at":"2026-11-02T15:53:47.06185Z"},{"id":"SUSE-SU-2020:0388-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2018-12207: Fixed a race condition where untrusted virtual machines could have been using the Instruction Fetch Unit of the Intel CPU to cause a Machine Exception during Page Size Change, causing the CPU core to be non-functional (bsc#1155945 XSA-304).\n- CVE-2018-19965: Fixed a DoS from attempting to use INVPCID with a non-canonical addresses (bsc#1115045 XSA-279).\n- CVE-2019-11135: Aborting an asynchronous TSX operation on Intel CPUs with Transactional Memory support could be used to facilitate side-channel information leaks out of microarchitectural buffers, similar to the previously described 'Microarchitectural Data Sampling' attack. (bsc#1152497 XSA-305).\n- CVE-2019-12067: Fixed a null pointer dereference in QEMU AHCI (bsc#1145652).\n- CVE-2019-12068: Fixed an infinite loop while executing script (bsc#1146874).\n- CVE-2019-12155: Fixed a null pointer dereference while releasing spice resources (bsc#1135905).\n- CVE-2019-14378: Fixed a heap buffer overflow during packet reassembly in slirp networking implementation (bsc#1143797).\n- CVE-2019-15890: Fixed a use-after-free during packet reassembly (bsc#1149813).\n- CVE-2019-17340: Fixed grant table transfer issues on large hosts (XSA-284 bsc#1126140).\n- CVE-2019-17341: Fixed a race with pass-through device hotplug (XSA-285 bsc#1126141).\n- CVE-2019-17342: Fixed steal_page violating page_struct access discipline (XSA-287 bsc#1126192).\n- CVE-2019-17343: Fixed an inconsistent PV IOMMU discipline (XSA-288 bsc#1126195).\n- CVE-2019-17344: Fixed a missing preemption in x86 PV page table unvalidation (XSA-290 bsc#1126196).\n- CVE-2019-17347: Fixed a PV kernel context switch corruption (XSA-293 bsc#1126201).\n- CVE-2019-18420: Fixed a hypervisor crash that could be caused by malicious x86 PV guests, resulting in a denial of service (bsc#1154448 XSA-296).\n- CVE-2019-18421: Fixed a privilege escalation through malicious PV guest administrators (bsc#1154458 XSA-299).\n- CVE-2019-18424: Fixed a privilege escalation through DMA to physical devices by untrusted domains (bsc#1154461 XSA-302).  \n- CVE-2019-18425: Fixed a privilege escalation from 32-bit PV guest used mode (bsc#1154456 XSA-298).\n- CVE-2019-19577: Fixed an issue where a malicious guest administrator could have caused Xen to access data structures while they are being modified leading to a crash (bsc#1158007 XSA-311). \n- CVE-2019-19578: Fixed an issue where a malicious or buggy PV guest could have caused hypervisor crash resulting in denial of service affecting the entire host (bsc#1158005 XSA-309).\n- CVE-2019-19579: Fixed a privilege escalation where an untrusted domain with access to a physical device can DMA into host memory (bsc#1157888 XSA-306).\n- CVE-2019-19580: Fixed a privilege escalation where a malicious PV guest administrator could have been able to escalate their privilege to that of the host (bsc#1158006 XSA-310).\n- CVE-2019-19581: Fixed a potential out of bounds on 32-bit Arm (bsc#1158003 XSA-307).\n- CVE-2019-19583: Fixed improper checks which could have allowed HVM/PVH guest userspace code to crash the guest, leading to a guest denial of service (bsc#1158004 XSA-308).\n","status":"published","published":"2020-02-17T14:03:16Z","modified":"2026-02-04T02:19:31.700959Z","updated_at":"2026-11-02T15:53:47.06185Z"}]}}