Filtered by vendor Xen
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Filtered by product Xen
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Total
468 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2018-12891 | 2 Debian, Xen | 2 Debian Linux, Xen | 2024-11-21 | N/A |
| An issue was discovered in Xen through 4.10.x. Certain PV MMU operations may take a long time to process. For that reason Xen explicitly checks for the need to preempt the current vCPU at certain points. A few rarely taken code paths did bypass such checks. By suitably enforcing the conditions through its own page table contents, a malicious guest may cause such bypasses to be used for an unbounded number of iterations. A malicious or buggy PV guest may cause a Denial of Service (DoS) affecting the entire host. Specifically, it may prevent use of a physical CPU for an indeterminate period of time. All Xen versions from 3.4 onwards are vulnerable. Xen versions 3.3 and earlier are vulnerable to an even wider class of attacks, due to them lacking preemption checks altogether in the affected code paths. Only x86 systems are affected. ARM systems are not affected. Only multi-vCPU x86 PV guests can leverage the vulnerability. x86 HVM or PVH guests as well as x86 single-vCPU PV ones cannot leverage the vulnerability. | ||||
| CVE-2018-10982 | 2 Debian, Xen | 2 Debian Linux, Xen | 2024-11-21 | N/A |
| An issue was discovered in Xen through 4.10.x allowing x86 HVM guest OS users to cause a denial of service (unexpectedly high interrupt number, array overrun, and hypervisor crash) or possibly gain hypervisor privileges by setting up an HPET timer to deliver interrupts in IO-APIC mode, aka vHPET interrupt injection. | ||||
| CVE-2018-10981 | 2 Debian, Xen | 2 Debian Linux, Xen | 2024-11-21 | N/A |
| An issue was discovered in Xen through 4.10.x allowing x86 HVM guest OS users to cause a denial of service (host OS infinite loop) in situations where a QEMU device model attempts to make invalid transitions between states of a request. | ||||
| CVE-2018-10472 | 2 Debian, Xen | 2 Debian Linux, Xen | 2024-11-21 | N/A |
| An issue was discovered in Xen through 4.10.x allowing x86 HVM guest OS users (in certain configurations) to read arbitrary dom0 files via QMP live insertion of a CDROM, in conjunction with specifying the target file as the backing file of a snapshot. | ||||
| CVE-2018-10471 | 2 Debian, Xen | 2 Debian Linux, Xen | 2024-11-21 | N/A |
| An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (out-of-bounds zero write and hypervisor crash) via unexpected INT 80 processing, because of an incorrect fix for CVE-2017-5754. | ||||
| CVE-2017-2620 | 5 Citrix, Debian, Qemu and 2 more | 12 Xenserver, Debian Linux, Qemu and 9 more | 2024-11-21 | N/A |
| Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process. | ||||
| CVE-2017-2615 | 5 Citrix, Debian, Qemu and 2 more | 12 Xenserver, Debian Linux, Qemu and 9 more | 2024-11-21 | N/A |
| Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt copy in backward mode. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS or potentially execute arbitrary code on the host with privileges of QEMU process on the host. | ||||
| CVE-2015-6815 | 7 Arista, Canonical, Fedoraproject and 4 more | 11 Eos, Ubuntu Linux, Fedora and 8 more | 2024-11-21 | 3.5 Low |
| The process_tx_desc function in hw/net/e1000.c in QEMU before 2.4.0.1 does not properly process transmit descriptor data when sending a network packet, which allows attackers to cause a denial of service (infinite loop and guest crash) via unspecified vectors. | ||||