CVE-2015-8551

Advisory lineage Upstream: 0 Downstream: 19
Modified
Published: 13 Apr 2016, 15:00
Last modified:06 Aug 2024, 08:20

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
6 MEDIUM
v3.1 (nvd)
EPSS Score
0.07% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Apr 2016, 15:00
Published
Vulnerability first disclosed
06 Aug 2024, 08:20
Last Modified
Vulnerability information updated

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."

CVSS Metrics

  • v3.1•MEDIUM•Score: 6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4.7AV:L/AC:M/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.07%• Percentile: 22%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • debian•debian_linux

    7.0 | 8.0

  • linux•linux_kernel

    ≥ 3.1, ≤ 3.1.10 | ≥ 4.3.0, ≤ 4.3.6

  • opensuse•opensuse

    13.1

  • suse•linux_enterprise_desktop

    11:sp4 | 12:sp1

  • suse•linux_enterprise_real_time_extension

    11:sp4 | 12:sp1

  • suse•linux_enterprise_server

    11 | 11:sp4 | 12:sp1

  • suse•linux_enterprise_software_development_kit

    11:sp4 | 12:sp1

  • suse•linux_enterprise_workstation_extension

    12:sp1

References (12)