CVE-2015-8551

xen: Linux pciback missing sanity checks leading to crash (XSA-157)

Published Apr 13, 2016 CVSS 3.1 · 6.0 Medium EPSS < 1% KEV · Not listed
Description
The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-3434-1 linux security update
EUVD EUVD EUVD-2015-8431 The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."
Ubuntu USN Ubuntu USN USN-2846-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-2847-1 Linux kernel (Trusty HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-2848-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-2849-1 Linux kernel (Utopic HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-2850-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-2851-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-2853-1 Linux kernel (Wily HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-2854-1 Linux kernel (Vivid HWE) vulnerabilities
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