CVE-2020-27174

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductAmazon Firecracker
PublishedOct 16, 2020
First seenOct 16, 2020

How to fix

Update
  • amazon firecracker0.21.3, 0.22.1 or later

Affected products

ProductAffected versionsFixed in
amazon firecrackerv < 0.21.3, 0.22.0 ≤ v < 0.22.10.21.3, 0.22.1

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CVE-2020-27174 · Amazon Firecracker · Dark Radar