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Computer vulnerabilities of Citrix XenServer

Xen: memory corruption via AMD IOMMU Pagetables Dynamic Height
An attacker, inside a guest system, can trigger a memory corruption via AMD IOMMU Pagetables Dynamic Height of Xen, in order to trigger a denial of service, and possibly to run code on the host system...
CERTFR-2019-AVI-628, CERTFR-2019-AVI-630, CTX266932, CVE-2019-19577, DSA-4602-1, FEDORA-2019-2e12bd3a9a, openSUSE-SU-2020:0011-1, SUSE-SU-2019:3296-1, SUSE-SU-2019:3297-1, SUSE-SU-2019:3309-1, SUSE-SU-2019:3310-1, SUSE-SU-2019:3338-1, SUSE-SU-2020:0334-1, SUSE-SU-2020:0388-1, SUSE-SU-2020:14444-1, SUSE-SU-2020:1630-1, VIGILANCE-VUL-31127, XSA-311
Xen: privilege escalation via Restartable PV Type Change
An attacker, inside a guest system, can bypass restrictions via Restartable PV Type Change of Xen, in order to escalate his privileges on the host system...
CERTFR-2019-AVI-628, CERTFR-2019-AVI-630, CTX266932, CVE-2019-19580, DSA-4602-1, FEDORA-2019-2e12bd3a9a, openSUSE-SU-2020:0011-1, SUSE-SU-2019:3296-1, SUSE-SU-2019:3297-1, SUSE-SU-2019:3309-1, SUSE-SU-2019:3310-1, SUSE-SU-2019:3338-1, SUSE-SU-2020:0334-1, SUSE-SU-2020:0388-1, SUSE-SU-2020:14444-1, SUSE-SU-2020:1630-1, VIGILANCE-VUL-31126, XSA-310
Xen: denial of service via Debug Exceptions Blocked States
An attacker can trigger a fatal error via Debug Exceptions Blocked States of Xen, in order to trigger a denial of service...
CERTFR-2019-AVI-628, CERTFR-2019-AVI-630, CTX266932, CVE-2019-19583, DSA-4602-1, FEDORA-2019-2e12bd3a9a, openSUSE-SU-2020:0011-1, SUSE-SU-2019:3296-1, SUSE-SU-2019:3297-1, SUSE-SU-2019:3309-1, SUSE-SU-2019:3310-1, SUSE-SU-2019:3338-1, SUSE-SU-2020:0334-1, SUSE-SU-2020:0388-1, SUSE-SU-2020:14444-1, SUSE-SU-2020:1630-1, VIGILANCE-VUL-31124, XSA-308
Intel Processors: information disclosure via TSX Asynchronous Abort
An attacker can bypass access restrictions to data via TSX Asynchronous Abort of Intel Processors, in order to obtain sensitive information...
6198355, CERTFR-2019-AVI-554, CERTFR-2019-AVI-555, CERTFR-2019-AVI-558, CERTFR-2019-AVI-559, CERTFR-2019-AVI-560, CERTFR-2019-AVI-561, CERTFR-2019-AVI-563, CERTFR-2019-AVI-571, CERTFR-2019-AVI-575, CERTFR-2019-AVI-612, CERTFR-2019-AVI-635, CERTFR-2020-AVI-029, CERTFR-2020-AVI-056, CTX263684, CVE-2019-11135, DLA-1989-1, DLA-1990-1, DLA-2051-1, DSA-2020-062, DSA-4564-1, DSA-4565-1, DSA-4565-2, DSA-4602-1, FEDORA-2019-1689d3fe07, FEDORA-2019-68d7f68507, FEDORA-2019-7a3fc17778, FreeBSD-SA-19:26.mcu, HPESBHF03968, INTEL-SA-00270, JSA11174, JSA11176, openSUSE-SU-2019:2503-1, openSUSE-SU-2019:2504-1, openSUSE-SU-2019:2505-1, openSUSE-SU-2019:2506-1, openSUSE-SU-2019:2507-1, openSUSE-SU-2019:2509-1, openSUSE-SU-2019:2510-1, openSUSE-SU-2019:2527-1, openSUSE-SU-2019:2528-1, openSUSE-SU-2019:2620-1, openSUSE-SU-2019:2631-1, openSUSE-SU-2019:2710-1, RHSA-2019:3832-01, RHSA-2019:3833-01, RHSA-2019:3834-01, RHSA-2019:3835-01, RHSA-2019:3836-01, RHSA-2019:3837-01, RHSA-2019:3838-01, RHSA-2019:3839-01, RHSA-2019:3840-01, RHSA-2019:3841-01, RHSA-2019:3842-01, RHSA-2019:3843-01, RHSA-2019:3844-01, RHSA-2019:3936-01, RHSA-2020:0026-01, RHSA-2020:0028-01, RHSA-2020:0204-01, RHSA-2020:0279-01, RHSA-2020:0366-01, RHSA-2020:0555-01, RHSA-2020:0666-01, SB10306, SSA:2019-320-01, SUSE-SU-2019:14217-1, SUSE-SU-2019:14218-1, SUSE-SU-2019:14220-1, SUSE-SU-2019:2946-1, SUSE-SU-2019:2947-1, SUSE-SU-2019:2948-1, SUSE-SU-2019:2949-1, SUSE-SU-2019:2950-1, SUSE-SU-2019:2951-1, SUSE-SU-2019:2952-1, SUSE-SU-2019:2953-1, SUSE-SU-2019:2954-1, SUSE-SU-2019:2955-1, SUSE-SU-2019:2956-1, SUSE-SU-2019:2957-1, SUSE-SU-2019:2958-1, SUSE-SU-2019:2959-1, SUSE-SU-2019:2960-1, SUSE-SU-2019:2961-1, SUSE-SU-2019:2962-1, SUSE-SU-2019:2984-1, SUSE-SU-2019:2986-1, SUSE-SU-2019:2987-1, SUSE-SU-2019:2988-1, SUSE-SU-2019:3091-1, SUSE-SU-2019:3200-1, SUSE-SU-2019:3294-1, SUSE-SU-2019:3295-1, SUSE-SU-2019:3297-1, SUSE-SU-2019:3340-1, SUSE-SU-2019:3348-1, SUSE-SU-2020:0093-1, SUSE-SU-2020:0334-1, SUSE-SU-2020:0388-1, SUSE-SU-2020:14444-1, USN-4182-1, USN-4182-2, USN-4182-3, USN-4182-4, USN-4183-1, USN-4183-2, USN-4184-1, USN-4184-2, USN-4185-1, USN-4185-2, USN-4185-3, USN-4186-1, USN-4186-2, USN-4186-3, USN-4187-1, USN-4188-1, VIGILANCE-VUL-30847, VMSA-2019-0020, XSA-305
Intel Processors: denial of service via Machine Check Error On Page Size Change
An attacker, inside a guest system, can trigger a fatal error via Machine Check Error On Page Size Change of Intel Processors, in order to trigger a denial of service on the host system...
CERTFR-2019-AVI-554, CERTFR-2019-AVI-555, CERTFR-2019-AVI-558, CERTFR-2019-AVI-559, CERTFR-2019-AVI-560, CERTFR-2019-AVI-561, CERTFR-2019-AVI-563, CERTFR-2019-AVI-571, CERTFR-2019-AVI-575, CERTFR-2019-AVI-635, CERTFR-2020-AVI-029, CERTFR-2020-AVI-056, CERTFR-2020-AVI-618, CERTFR-2020-AVI-817, cpujul2020, CTX263684, CVE-2018-12207, DLA-1990-1, DSA-4564-1, DSA-4566-1, DSA-4602-1, FEDORA-2019-1689d3fe07, FEDORA-2019-68d7f68507, FEDORA-2019-7a3fc17778, FreeBSD-SA-19:25.mcepsc, INTEL-SA-00210, JSA11174, JSA11176, K17269881, openSUSE-SU-2019:2503-1, openSUSE-SU-2019:2505-1, openSUSE-SU-2019:2506-1, openSUSE-SU-2019:2507-1, openSUSE-SU-2019:2510-1, openSUSE-SU-2019:2710-1, RHSA-2019:3832-01, RHSA-2019:3833-01, RHSA-2019:3834-01, RHSA-2019:3835-01, RHSA-2019:3836-01, RHSA-2019:3837-01, RHSA-2019:3838-01, RHSA-2019:3839-01, RHSA-2019:3840-01, RHSA-2019:3841-01, RHSA-2019:3842-01, RHSA-2019:3843-01, RHSA-2019:3844-01, RHSA-2019:3936-01, RHSA-2020:0026-01, RHSA-2020:0028-01, RHSA-2020:0204-01, STORM-2019-026, SUSE-SU-2019:14218-1, SUSE-SU-2019:2946-1, SUSE-SU-2019:2947-1, SUSE-SU-2019:2948-1, SUSE-SU-2019:2949-1, SUSE-SU-2019:2950-1, SUSE-SU-2019:2951-1, SUSE-SU-2019:2952-1, SUSE-SU-2019:2953-1, SUSE-SU-2019:2954-1, SUSE-SU-2019:2955-1, SUSE-SU-2019:2956-1, SUSE-SU-2019:2960-1, SUSE-SU-2019:2961-1, SUSE-SU-2019:2962-1, SUSE-SU-2019:2984-1, SUSE-SU-2019:3294-1, SUSE-SU-2019:3295-1, SUSE-SU-2019:3297-1, SUSE-SU-2019:3340-1, SUSE-SU-2019:3348-1, SUSE-SU-2020:0093-1, SUSE-SU-2020:0334-1, SUSE-SU-2020:0388-1, SUSE-SU-2020:14444-1, USN-4183-1, USN-4183-2, USN-4184-1, USN-4184-2, USN-4185-1, USN-4185-2, USN-4185-3, USN-4186-1, USN-4186-2, USN-4186-3, VIGILANCE-VUL-30843, VMSA-2019-0020, XSA-304
Xen: privilege escalation via Restartable PV Type Change
An attacker, inside a guest system, can bypass restrictions via Restartable PV Type Change of Xen, in order to escalate his privileges on the host system...
CERTFR-2019-AVI-541, CERTFR-2019-AVI-543, CTX263477, CVE-2019-18421, DSA-4602-1, FEDORA-2019-865bb16900, FEDORA-2019-cbb732f760, openSUSE-SU-2019:2506-1, SUSE-SU-2019:2960-1, SUSE-SU-2019:2961-1, SUSE-SU-2019:2962-1, SUSE-SU-2019:3297-1, SUSE-SU-2020:0334-1, SUSE-SU-2020:0388-1, SUSE-SU-2020:14444-1, SUSE-SU-2020:14448-1, VIGILANCE-VUL-30763, XSA-299
Xen: memory corruption via PCI Devices Deassignment
An attacker, inside a guest system, can trigger a memory corruption via PCI Devices Deassignment of Xen, in order to trigger a denial of service, and possibly to run code on the host system...
CERTFR-2019-AVI-541, CERTFR-2019-AVI-543, CTX263477, CVE-2019-18424, DSA-4602-1, FEDORA-2019-865bb16900, FEDORA-2019-cbb732f760, openSUSE-SU-2019:2506-1, SUSE-SU-2019:2960-1, SUSE-SU-2019:2961-1, SUSE-SU-2019:2962-1, SUSE-SU-2019:3297-1, SUSE-SU-2019:3310-1, SUSE-SU-2020:0334-1, SUSE-SU-2020:0388-1, SUSE-SU-2020:14444-1, VIGILANCE-VUL-30760, XSA-302
Xen: privilege escalation via Descriptor Table Limit
An attacker, inside a guest system, can bypass restrictions via Descriptor Table Limit of Xen, in order to escalate his privileges on the host system...
CERTFR-2019-AVI-541, CERTFR-2019-AVI-543, CTX263477, CVE-2019-18425, DSA-4602-1, FEDORA-2019-cbb732f760, openSUSE-SU-2019:2506-1, SUSE-SU-2019:2960-1, SUSE-SU-2019:2961-1, SUSE-SU-2019:2962-1, SUSE-SU-2019:3297-1, SUSE-SU-2020:0334-1, SUSE-SU-2020:0388-1, SUSE-SU-2020:14444-1, SUSE-SU-2020:14448-1, VIGILANCE-VUL-30758, XSA-298
Xen: assertion error via VCPUOP_initialise
An attacker, inside a guest system, can force an assertion error via VCPUOP_initialise() of Xen, in order to trigger a denial of service on the host system...
CERTFR-2019-AVI-541, CERTFR-2019-AVI-543, CTX263477, CVE-2019-18420, DSA-4602-1, FEDORA-2019-cbb732f760, openSUSE-SU-2019:2506-1, SUSE-SU-2019:2960-1, SUSE-SU-2019:2961-1, SUSE-SU-2019:2962-1, SUSE-SU-2019:3297-1, SUSE-SU-2020:0334-1, SUSE-SU-2020:0388-1, SUSE-SU-2020:14444-1, VIGILANCE-VUL-30757, XSA-296
Linux kernel: denial of service via TCP SACK Low MSS Panic
An attacker can send malicious TCP SACK Low MSS Panic packets to Linux kernel, in order to trigger a denial of service...
1074268, 1442037, ARUBA-PSA-2020-010, CERTFR-2019-AVI-276, CERTFR-2019-AVI-277, CERTFR-2019-AVI-278, CERTFR-2019-AVI-298, CERTFR-2019-AVI-303, CERTFR-2019-AVI-309, CERTFR-2019-AVI-429, CERTFR-2019-AVI-458, CERTFR-2019-AVI-561, CERTFR-2019-AVI-597, CERTFR-2020-AVI-575, cpujan2020, CTX256725, CVE-2019-11477, DLA-1823-1, DLA-1824-1, DSA-2019-117, DSA-4465-1, FEDORA-2019-6c3d89b3d0, FEDORA-2019-914542e05c, FG-IR-19-180, K78234183, openSUSE-SU-2019:1570-1, openSUSE-SU-2019:1571-1, openSUSE-SU-2019:1579-1, PAN-SA-2019-0013, RHSA-2019:1479-01, RHSA-2019:1480-01, RHSA-2019:1481-01, RHSA-2019:1482-01, RHSA-2019:1483-01, RHSA-2019:1484-01, RHSA-2019:1485-01, RHSA-2019:1486-01, RHSA-2019:1487-01, RHSA-2019:1488-01, RHSA-2019:1489-01, RHSA-2019:1490-01, RHSA-2019:1602-01, SA44193, SB10287, sk156192, SSA-462066, SSB-439005, SUSE-SU-2019:14089-1, SUSE-SU-2019:1527-1, SUSE-SU-2019:1529-1, SUSE-SU-2019:1530-1, SUSE-SU-2019:1532-1, SUSE-SU-2019:1533-1, SUSE-SU-2019:1534-1, SUSE-SU-2019:1535-1, SUSE-SU-2019:1536-1, SUSE-SU-2019:1550-1, SUSE-SU-2019:1692-1, SUSE-SU-2019:2430-1, SUSE-SU-2019:2450-1, SUSE-SU-2019:2950-1, SYMSA1492, Synology-SA-19:28, USN-4017-1, USN-4017-2, VIGILANCE-VUL-29543, VMSA-2019-0010, VMSA-2019-0010.1, VU#905115
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