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CVE PROGRAM SOURCE RECORD6.3 Medium

CVE-2022-41716

Unsanitized NUL in environment variables on Windows in syscall and os/exec

Description

Due to unsanitized NUL values, attackers may be able to maliciously set environment variables on Windows. In syscall.StartProcess and os/exec.Cmd, invalid environment variable values containing NUL values are not properly checked for. A malicious environment variable value can exploit this behavior to set a value for a different environment variable. For example, the environment variable string "A=B\x00C=D" sets the variables "A=B" and "C=D".

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Go standard library syscall

Default version status: unaffected

  • 0 to < 1.18.8affected
  • 1.19.0-0 to < 1.19.3affected

Go standard library os/exec

Default version status: unaffected

  • 0 to < 1.18.8affected
  • 1.19.0-0 to < 1.19.3affected

References