Upstream information
Description
An out-of-bounds write issue in the virtio PCI transport in Amazon Firecracker 1.13.0 through 1.14.3 and 1.15.0 on x86_64 and aarch64 might allow a local guest user with root privileges to crash the Firecracker VMM process or potentially execute arbitrary code on the host via modification of virtio queue configuration registers after device activation. Achieving code execution on the host requires additional preconditions, such as the use of a custom guest kernel or specific snapshot configurations.To remediate this, users should upgrade to Firecracker 1.14.4 or 1.15.1 and later.
SUSE information
Overall state of this security issue: Does not affect SUSE products
This issue is currently rated as having important severity.
| CVSS detail | CNA (Amazon) | SUSE |
|---|---|---|
| Base Score | 7.5 | 7.5 |
| Vector | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |
| Attack Vector | Local | Local |
| Attack Complexity | High | High |
| Privileges Required | High | High |
| User Interaction | None | None |
| Scope | Changed | Changed |
| Confidentiality Impact | High | High |
| Integrity Impact | High | High |
| Availability Impact | High | High |
| CVSSv3 Version | 3.1 | 3.1 |
| CVSS detail | CNA (Amazon) | SUSE |
|---|---|---|
| Base Score | 8.7 | 5 |
| Vector | CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H |
| Attack Vector | Local | Local |
| Attack Complexity | High | High |
| Attack Requirements | Present | Present |
| Privileges Required | High | High |
| User Interaction | None | None |
| Vulnerable System Confidentiality Impact | High | None |
| Vulnerable System Integrity Impact | High | None |
| Vulnerable System Availability Impact | High | None |
| Subsequent System Confidentiality Impact | High | High |
| Subsequent System Integrity Impact | High | High |
| Subsequent System Availability Impact | High | High |
| CVSSv4 Version | 4.0 | 4.0 |
SUSE Timeline for this CVE
CVE page created: Wed Apr 8 04:27:23 2026CVE page last modified: Thu Apr 9 14:48:16 2026