CVEvulnerability
CVE-2020-27174
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-10-16
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-401
Description
In Amazon AWS Firecracker before 0.21.3, and 0.22.x before 0.22.1, the serial console buffer can grow its memory usage without limit when data is sent to the standard input. This can result in a memory leak on the microVM emulation thread, possibly occupying more memory than intended on the host.
Affected configurations
• amazon firecracker (< 0.21.3)
• amazon firecracker (>= 0.22.0 < 0.22.1)
Related
Weakness · CWE (1)
- CWE-401 Missing Release of Memory after Effective Lifetime weakness
References
- http://www.openwall.com/lists/oss-security/2020/10/23/1 Third Party Advisory
- https://github.com/firecracker-microvm/firecracker/issues/2177 Third Party Advisory
- https://github.com/firecracker-microvm/firecracker/pull/2178 Patch, Third Party Advisory
- https://github.com/firecracker-microvm/firecracker/pull/2179 Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/10/23/1 Third Party Advisory
- https://github.com/firecracker-microvm/firecracker/issues/2177 Third Party Advisory
- https://github.com/firecracker-microvm/firecracker/pull/2178 Patch, Third Party Advisory
- https://github.com/firecracker-microvm/firecracker/pull/2179 Patch, Third Party Advisory