Xen 4.4.x, when running on an ARM system and "handling an unknown system register access from 64-bit userspace," returns to an instruction of the trap handler for kernel space faults instead of an instruction that is associated with faults in 64-bit userspace, which allows local guest users to cause a denial of service (crash) and possibly gain privileges via a crafted process.
Max CVSS
4.6
EPSS Score
0.06%
Published
2014-10-26
Updated
2017-08-29
The get_free_port function in Xen allows local authenticated DomU users to cause a denial of service or possibly gain privileges via unspecified vectors involving a new event channel port.
Max CVSS
7.7
EPSS Score
0.04%
Published
2014-01-07
Updated
2015-09-03
The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the expected password.
Max CVSS
7.2
EPSS Score
0.12%
Published
2009-10-05
Updated
2017-09-19
The hypervisor_callback function in Xen, possibly before 3.4.0, as applied to the Linux kernel 2.6.30-rc4, 2.6.18, and probably other versions allows guest user applications to cause a denial of service (kernel oops) of the guest OS by triggering a segmentation fault in "certain address ranges."
Max CVSS
5.0
EPSS Score
0.12%
Published
2009-05-22
Updated
2017-09-29
qemu-dm.debug in Xen 3.2.1 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/args temporary file.
Max CVSS
6.9
EPSS Score
0.04%
Published
2008-11-07
Updated
2017-09-29
Heap-based buffer overflow in the flask_security_label function in Xen 3.3, when compiled with the XSM:FLASK module, allows unprivileged domain users (domU) to execute arbitrary code via the flask_op hypercall.
Max CVSS
6.8
EPSS Score
0.49%
Published
2008-08-14
Updated
2017-08-08
The copy_to_user function in the PAL emulation functionality for Xen 3.1.2 and earlier, when running on ia64 systems, allows HVM guest users to access arbitrary physical memory by triggering certain mapping operations.
Max CVSS
4.6
EPSS Score
0.10%
Published
2007-12-17
Updated
2017-09-29
7 vulnerabilities found
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