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Computer vulnerabilities of Citrix Hypervisor

Linux, Xen: memory leak via Blkback Driver
An attacker, inside a guest system, can create a memory leak via Blkback Driver of Linux with Xen, in order to trigger a denial of service on the host system...
CERTFR-2021-AVI-227, CERTFR-2021-AVI-228, CERTFR-2021-AVI-264, CERTFR-2021-AVI-278, CERTFR-2021-AVI-284, CERTFR-2021-AVI-323, CERTFR-2021-AVI-372, CERTFR-2021-AVI-392, CERTFR-2021-AVI-436, CERTFR-2021-AVI-469, CTX306565, CVE-2021-28688, openSUSE-SU-2021:0532-1, openSUSE-SU-2021:0758-1, SUSE-SU-2021:1175-1, SUSE-SU-2021:1176-1, SUSE-SU-2021:1177-1, SUSE-SU-2021:1210-1, SUSE-SU-2021:1211-1, SUSE-SU-2021:1238-1, SUSE-SU-2021:1341-1, SUSE-SU-2021:1573-1, SUSE-SU-2021:1596-1, SUSE-SU-2021:1624-1, SUSE-SU-2021:1975-1, SUSE-SU-2021:1977-1, USN-4946-1, USN-4948-1, USN-4982-1, USN-4984-1, VIGILANCE-VUL-34966, XSA-371
Xen, Linux: denial of service via Netback Grant Mapping Errors
An attacker, inside a guest system, can trigger a fatal error via Netback Grant Mapping Errors of Xen with Linux, in order to trigger a denial of service on the host system...
CERTFR-2021-AVI-191, CERTFR-2021-AVI-227, CERTFR-2021-AVI-264, CERTFR-2021-AVI-265, CERTFR-2021-AVI-278, CERTFR-2021-AVI-284, CERTFR-2021-AVI-372, CERTFR-2021-AVI-387, CERTFR-2021-AVI-392, CERTFR-2021-AVI-393, CERTFR-2021-AVI-436, CERTFR-2021-AVI-469, CTX306565, CVE-2021-28038, DLA-2586-1, DLA-2610-1, openSUSE-SU-2021:0532-1, openSUSE-SU-2021:0758-1, SUSE-SU-2021:1175-1, SUSE-SU-2021:1176-1, SUSE-SU-2021:1177-1, SUSE-SU-2021:1210-1, SUSE-SU-2021:1211-1, SUSE-SU-2021:1238-1, SUSE-SU-2021:1573-1, SUSE-SU-2021:1596-1, SUSE-SU-2021:1617-1, SUSE-SU-2021:1623-1, SUSE-SU-2021:1624-1, SUSE-SU-2021:1975-1, SUSE-SU-2021:1977-1, USN-4904-1, USN-4911-1, USN-4945-1, USN-4945-2, USN-4946-1, USN-4984-1, VIGILANCE-VUL-34750, XSA-367
Xen: privilege escalation via IOMMU Read/write DMA Access
An attacker, inside a guest system, can bypass restrictions via IOMMU Read/write DMA Access of Xen, in order to escalate his privileges on the host system...
CERTFR-2021-AVI-135, CERTFR-2021-AVI-460, CTX316324, CVE-2021-27379, DSA-4888-1, SUSE-SU-2021:1250-1, SUSE-SU-2021:1251-1, SUSE-SU-2021:1252-1, SUSE-SU-2021:1268-1, VIGILANCE-VUL-34612, XSA-366
Xen, Linux: memory corruption via Linux Blkback Grant Mapping
An attacker, inside a guest system, can trigger a memory corruption via Linux Blkback Grant Mapping of Xen, in order to trigger a denial of service, and possibly to run code on the host system...
CERTFR-2021-AVI-152, CERTFR-2021-AVI-185, CERTFR-2021-AVI-191, CERTFR-2021-AVI-264, CERTFR-2021-AVI-265, CERTFR-2021-AVI-278, CERTFR-2021-AVI-372, CTX296603, CVE-2021-26930, DLA-2586-1, DLA-2610-1, FEDORA-2021-7143aca8cb, FEDORA-2021-8d45d297c6, openSUSE-SU-2021:0393-1, SUSE-SU-2021:0735-1, SUSE-SU-2021:0736-1, SUSE-SU-2021:0737-1, SUSE-SU-2021:0738-1, SUSE-SU-2021:0740-1, SUSE-SU-2021:0741-1, SUSE-SU-2021:0743-1, SUSE-SU-2021:0744-1, SUSE-SU-2021:1175-1, SUSE-SU-2021:1176-1, SUSE-SU-2021:1210-1, USN-4904-1, USN-4909-1, USN-4946-1, USN-4949-1, VIGILANCE-VUL-34593, XSA-365
Xen, Linux: assertion error via Linux Mapping Error
An attacker, inside a guest system, can force an assertion error via Linux Mapping Error of Xen, in order to trigger a denial of service on the host system...
CERTFR-2021-AVI-152, CERTFR-2021-AVI-185, CERTFR-2021-AVI-191, CERTFR-2021-AVI-264, CERTFR-2021-AVI-265, CERTFR-2021-AVI-278, CERTFR-2021-AVI-372, CTX296603, CVE-2021-26931, DLA-2586-1, DLA-2610-1, FEDORA-2021-7143aca8cb, FEDORA-2021-8d45d297c6, openSUSE-SU-2021:0393-1, SUSE-SU-2021:0735-1, SUSE-SU-2021:0736-1, SUSE-SU-2021:0737-1, SUSE-SU-2021:0738-1, SUSE-SU-2021:0740-1, SUSE-SU-2021:0741-1, SUSE-SU-2021:0743-1, SUSE-SU-2021:0744-1, SUSE-SU-2021:1175-1, SUSE-SU-2021:1176-1, SUSE-SU-2021:1210-1, USN-4904-1, USN-4909-1, USN-4946-1, USN-4949-1, VIGILANCE-VUL-34590, XSA-362
Xen, Linux: denial of service via Linux Mapping Error
An attacker, inside a guest system, can trigger a fatal error via Linux Mapping Error of Xen, in order to trigger a denial of service on the host system...
CERTFR-2021-AVI-152, CERTFR-2021-AVI-185, CERTFR-2021-AVI-191, CERTFR-2021-AVI-264, CERTFR-2021-AVI-278, CTX296603, CVE-2021-26932, DLA-2586-1, DLA-2610-1, FEDORA-2021-7143aca8cb, FEDORA-2021-8d45d297c6, FreeBSD-SA-21:06.xen, openSUSE-SU-2021:0393-1, SUSE-SU-2021:0735-1, SUSE-SU-2021:0736-1, SUSE-SU-2021:0737-1, SUSE-SU-2021:0738-1, SUSE-SU-2021:0740-1, SUSE-SU-2021:0741-1, SUSE-SU-2021:0743-1, SUSE-SU-2021:0744-1, SUSE-SU-2021:1175-1, SUSE-SU-2021:1176-1, SUSE-SU-2021:1210-1, VIGILANCE-VUL-34589, XSA-361
Open vSwitch: denial of service via IP With Ethernet Padding
An attacker can trigger a fatal error via IP With Ethernet Padding of Open vSwitch, in order to trigger a denial of service...
CERTFR-2021-AVI-227, CTX306565, CVE-2020-35498, DLA-2571-1, DSA-4852-1, FEDORA-2021-fba11d37ee, openSUSE-SU-2021:0283-1, RHSA-2021:0834-01, RHSA-2021:0835-01, RHSA-2021:0837-01, SUSE-SU-2021:0436-1, SUSE-SU-2021:0439-1, SUSE-SU-2021:0440-1, SUSE-SU-2021:0446-1, SUSE-SU-2021:0451-1, SUSE-SU-2021:0479-1, USN-4729-1, VIGILANCE-VUL-34548
Xen: denial of service via X86 HVM IRQ Vector
An attacker, inside a guest system, can trigger a fatal error via X86 HVM IRQ Vector of Xen, in order to trigger a denial of service on the host system...
CERTFR-2021-AVI-053, CERTFR-2021-AVI-086, CTX291439, CVE-2021-3308, FEDORA-2021-16c9c40d4d, FEDORA-2021-7785f6c616, SUSE-SU-2021:1023-1, SUSE-SU-2021:1028-1, SUSE-SU-2021:1460-1, VIGILANCE-VUL-34399, XSA-360
Xen: denial of service via FIFO Event Channels Block
An attacker, inside a guest system, can trigger a fatal error via FIFO Event Channels of Xen, in order to trigger a denial of service on the host system...
CERTFR-2020-AVI-824, CERTFR-2020-AVI-825, CTX286756, CVE-2020-29570, DSA-4812-1, FEDORA-2020-64859a826b, FEDORA-2020-df772b417b, openSUSE-SU-2020:2313-1, openSUSE-SU-2020:2331-1, SUSE-SU-2020:14578-1, SUSE-SU-2020:3880-1, SUSE-SU-2020:3881-1, SUSE-SU-2020:3913-1, SUSE-SU-2020:3914-1, SUSE-SU-2020:3915-1, SUSE-SU-2020:3916-1, SUSE-SU-2020:3945-1, VIGILANCE-VUL-34122, XSA-358
Xen: denial of service via XAPI Memory Usage
An attacker, inside a guest system, can trigger a fatal error via XAPI Memory Usage of Xen, in order to trigger a denial of service on the host system...
CERTFR-2020-AVI-824, CERTFR-2020-AVI-825, CTX286756, CVE-2020-29487, VIGILANCE-VUL-34120, XSA-354
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