CVE-2019-18844 Information

Description

The Device Model in ACRN before 2019w25.5-140000p relies on assert calls in devicemodel/hw/pci/core.c and devicemodel/include/pci_core.h (instead of other mechanisms for propagating error information or diagnostic information) which might allow attackers to cause a denial of service (assertion failure) within pci core. This is fixed in 1.2. 6199e653418e is a mitigation for pre-1.1 versions whereas 2b3dedfb9ba1 is a mitigation for 1.1.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://github.com/projectacrn/acrn-hypervisor/commit/2b3dedfb9ba13f15887f22b935d373f36c9a59fa https://github.com/projectacrn/acrn-hypervisor/commit/6199e653418eda58cd698d8769820904453e2535 https://github.com/projectacrn/acrn-hypervisor/compare/acrn-2019w25.4-140000p…acrn-2019w25.5-140000p https://github.com/projectacrn/acrn-hypervisor/issues/3252 https://github.com/shuox/acrn-hypervisor/commit/97b153237c256c586e528eac7fc2f51aedb2b2fc

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5