194 matches found
CVE-2020-15566
CVE-2020-15566 affects Xen 4.10 and later. It arises from incorrect error handling during event-channel port allocation, where failure to check errors can let a guest configure more than the allowed event channels and crash the host (local access required). Public advisories reference XSA-317 and...
Incorrect error handling in event channel port allocation
ISSUE DESCRIPTION The allocation of an event channel port may fail for multiple reasons: 1 Port is already in use 2 The memory allocation failed 3 The port we try to allocate is higher than what is supported by the ABI e.g 2L or FIFO used by the guest or the limit set by an administrator...
CVE-2017-10917
Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service NULL pointer dereference and host OS crash or possibly obtain sensitive information, aka XSA-221...
CVE-2017-10917
Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service NULL pointer dereference and host OS crash or possibly obtain sensitive information, aka XSA-221...
UBUNTU-CVE-2017-10917
Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service NULL pointer dereference and host OS crash or possibly obtain sensitive information, aka XSA-221...
ALPINE-CVE-2017-10917
Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service NULL pointer dereference and host OS crash or possibly obtain sensitive information, aka XSA-221...
CVE-2017-10917
CVE-2017-10917 refers to a NULL pointer dereference in Xen’s event polling code, which can allow a guest user to cause a denial of service on the host. It is listed among multiple Xen regressions resolved in Debian DSA-3969 and Debian’s corresponding package fixes for stretch (Xen 4.8.x line). Af...
CVE-2017-10917
Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service NULL pointer dereference and host OS crash or possibly obtain sensitive information, aka XSA-221...
NULL pointer deref in event channel poll
ISSUE DESCRIPTION When polling event channels, in general arbitrary port numbers can be specified. Specifically, there is no requirement that a polled event channel ports has ever been created. When the code was generalised from an earlier implementation, introducing some intermediate pointers, a...
FreeBSD : xen-kernel -- use after free in FIFO event channel code (4bf57137-ba4d-11e6-ae1b-002590263bf5)
The Xen Project reports : When the EVTCHNOPinitcontrol operation is called with a bad guest frame number, it takes an error path which frees a control structure without also clearing the corresponding pointer. Certain subsequent operations EVTCHNOPexpandarray or another EVTCHNOPinitcontrol, upon...
CVE-2016-7154
Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service host crash and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number...
DEBIAN-CVE-2016-7154
Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service host crash and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number...
CVE-2016-7154
Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service host crash and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number...
Design/Logic Flaw
Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service host crash and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number...
UBUNTU-CVE-2016-7154
Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service host crash and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number...
CVE-2016-7154
Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service host crash and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number...
CVE-2016-7154
Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service host crash and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number...
Citrix XenServer Multiple Security Updates (CTX216071)
A number of security vulnerabilities have been identified in Citrix XenServer that may allow malicious privileged code running within a guest VM to compromise the host. SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright...
[SECURITY] [DSA 3663-1] xen security update
------------------------------------------------------------------------- Debian Security Advisory DSA-3663-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso September 09, 2016 https://www.debian.org/security/faq -...