What’s Vulnerable › Vulnerabilities

CVE-2019-18844

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-13 · updated 2026-06-17
• Weakness: CWE-617

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.

Affected products

• Linux Acrn: before 2019w25.5-140000p — fixed in 2019w25.5-140000p

How to fix

Upgrade to a fixed version: Linux Acrn 2019w25.5-140000p. Check the vendor advisory for mitigations.

References

• 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
• 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

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