CVE-2019-18844
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.74% probability · 76th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- linux/acrn
- Source
- cve@mitre.org
References
- https://github.com/projectacrn/acrn-hypervisor/commit/2b3dedfb9ba13f15887f22b935d373f36c9a59faPatch, Third Party Advisory
- https://github.com/projectacrn/acrn-hypervisor/commit/6199e653418eda58cd698d8769820904453e2535Patch, Third Party Advisory
- https://github.com/projectacrn/acrn-hypervisor/compare/acrn-2019w25.4-140000p...acrn-2019w25.5-140000pThird Party Advisory
- https://github.com/projectacrn/acrn-hypervisor/issues/3252Third Party Advisory
- https://github.com/shuox/acrn-hypervisor/commit/97b153237c256c586e528eac7fc2f51aedb2b2fcThird Party Advisory
- https://github.com/projectacrn/acrn-hypervisor/commit/2b3dedfb9ba13f15887f22b935d373f36c9a59faPatch, Third Party Advisory
- https://github.com/projectacrn/acrn-hypervisor/commit/6199e653418eda58cd698d8769820904453e2535Patch, Third Party Advisory
- https://github.com/projectacrn/acrn-hypervisor/compare/acrn-2019w25.4-140000p...acrn-2019w25.5-140000pThird Party Advisory
- https://github.com/projectacrn/acrn-hypervisor/issues/3252Third Party Advisory
- https://github.com/shuox/acrn-hypervisor/commit/97b153237c256c586e528eac7fc2f51aedb2b2fcThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.