CVE-2022-41716
Vulnerability from cvelistv5
Published
2022-11-02 15:28
Modified
2024-10-30 13:59
Summary
Unsanitized NUL in environment variables on Windows in syscall and os/exec
Impacted products
Show details on NVD website


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            "url": "https://pkg.go.dev/vuln/GO-2022-1095"
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        "metrics": [
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            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 6.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
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                "id": "CVE-2022-41716",
                "options": [
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    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "syscall",
          "platforms": [
            "windows"
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          "product": "syscall",
          "programRoutines": [
            {
              "name": "StartProcess"
            }
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          "vendor": "Go standard library",
          "versions": [
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              "lessThan": "1.18.8",
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        },
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          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "os/exec",
          "platforms": [
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          "product": "os/exec",
          "programRoutines": [
            {
              "name": "Cmd.environ"
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              "name": "dedupEnv"
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              "name": "dedupEnvCase"
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            {
              "name": "Cmd.CombinedOutput"
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            {
              "name": "Cmd.Environ"
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              "name": "Cmd.Output"
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      "credits": [
        {
          "lang": "en",
          "value": "RyotaK (https://twitter.com/ryotkak)"
        }
      ],
      "descriptions": [
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          "lang": "en",
          "value": "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\"."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-158: Improper Neutralization of Null Byte or NUL Character",
              "lang": "en"
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        "dateUpdated": "2023-06-12T19:12:49.198Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
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      "title": "Unsanitized NUL in environment variables on Windows in syscall and os/exec"
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    "datePublished": "2022-11-02T15:28:19.574Z",
    "dateReserved": "2022-09-28T17:00:06.607Z",
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