CVE-2020-12888 - Improper Handling of Exceptional Conditions

Severity

65%

Complexity

20%

Confidentiality

66%

The VFIO PCI driver in the Linux kernel through 5.6.13 mishandles attempts to access disabled memory space.

The VFIO PCI driver in the Linux kernel through 5.6.13 mishandles attempts to access disabled memory space.

CVSS 3.1 Base Score 6.5. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H).

CVSS 2.0 Base Score 4.9. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C).

CVSS 3.1 Base Score 5.3. CVSS Attack Vector: local. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H).

CVSS 2.0 Base Score 4.7. CVSS Attack Vector: local. CVSS Attack Complexity: medium. CVSS Vector: (AV:L/AC:M/Au:N/C:N/I:N/A:C).

Overview

First reported 4 years ago

2020-05-15 18:15:00

Last updated 4 years ago

2020-11-02 21:15:00

Affected Software

Linux Kernel

Fedora 32

32

References

https://lore.kernel.org/kvm/[email protected]/

https://lore.kernel.org/kvm/[email protected]/

[oss-security] 20200519 CVE-2020-12888 Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario

https://lore.kernel.org/kvm/[email protected]/

Patch, Vendor Advisory

https://lore.kernel.org/kvm/[email protected]/

Patch, Vendor Advisory

FEDORA-2020-57bf620276

[oss-security] 20200519 CVE-2020-12888 Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario

Mailing List, Third Party Advisory

FEDORA-2020-57bf620276

Third Party Advisory

FEDORA-2020-5436586091

https://security.netapp.com/advisory/ntap-20200608-0001/

openSUSE-SU-2020:0935

openSUSE-SU-2020:1153

USN-4525-1

USN-4526-1

[debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security update

[debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security update

[debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression update

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