FKIE_CVE-2017-1000378

Vulnerability from fkie_nvd - Published: 2017-06-19 16:29 - Updated: 2025-04-20 01:37
Severity ?
9.8 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
The NetBSD qsort() function is recursive, and not randomized, an attacker can construct a pathological input array of N elements that causes qsort() to deterministically recurse N/4 times. This allows attackers to consume arbitrary amounts of stack memory and manipulate stack memory to assist in arbitrary code execution attacks. This affects NetBSD 7.1 and possibly earlier versions.
References
cve@mitre.orghttp://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdlib/qsort.c?rev=1.23&content-type=text/x-cvsweb-markupThird Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/99255Third Party Advisory, VDB Entry
cve@mitre.orghttps://www.qualys.com/2017/06/19/stack-clash/stack-clash.txtThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdlib/qsort.c?rev=1.23&content-type=text/x-cvsweb-markupThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/99255Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txtThird Party Advisory
Impacted products
Vendor Product Version
netbsd netbsd *
To clipboard 

{
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    {
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              "criteria": "cpe:2.3:o:netbsd:netbsd:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7F25F328-22FC-4189-B04E-965F2864B051",
              "versionEndIncluding": "7.1",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The NetBSD qsort() function is recursive, and not randomized, an attacker can construct a pathological input array of N elements that causes qsort() to deterministically recurse N/4 times. This allows attackers to consume arbitrary amounts of stack memory and manipulate stack memory to assist in arbitrary code execution attacks. This affects NetBSD 7.1 and possibly earlier versions."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n qsort() de NetBSD es recursiva y no aleatorizada, por lo que un atacante puede construir un array de entrada patol\u00f3gica de elementos N que provoca que qsort() se repita inevitablemente N/4 veces. Esto permite que los atacantes consuman cantidades de memoria de pila arbitrarias y manipulen la memoria de pila para ayudar en los ataques de ejecuci\u00f3n de c\u00f3digo arbitrario. Esto afecta a NetBSD 7.1 y posiblemente a versiones anteriores."
    }
  ],
  "id": "CVE-2017-1000378",
  "lastModified": "2025-04-20T01:37:25.860",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
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        "obtainOtherPrivilege": false,
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        "type": "Primary",
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          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
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          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  },
  "published": "2017-06-19T16:29:00.657",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdlib/qsort.c?rev=1.23\u0026content-type=text/x-cvsweb-markup"
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      "tags": [
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-400"
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      "source": "nvd@nist.gov",
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}


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