CVE-2021-43638: amazon workspaces Integer Overflow or Wraparound

Vulnerability summary

CVE-2021-43638 is a high (CVSS 8.8) Integer Overflow or Wraparound vulnerability in amazon workspaces. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 44.4% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 07-12-2021
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

Amazon Amazon WorkSpaces agent is affected by Integer Overflow. IOCTL Handler 0x22001B in the Amazon WorkSpaces agent below v1.0.1.1537 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.