FKIE_CVE-2018-15501

Vulnerability from fkie_nvd - Published: 2018-08-18 02:29 - Updated: 2026-06-17 01:42
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, a remote attacker can send a crafted smart-protocol "ng" packet that lacks a '\0' byte to trigger an out-of-bounds read that leads to DoS.
References
cve@mitre.orghttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406Exploit, Issue Tracking, Patch, Third Party Advisory
cve@mitre.orghttps://bugzilla.suse.com/show_bug.cgi?id=1104641Issue Tracking, Patch, Third Party Advisory
cve@mitre.orghttps://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649Patch, Third Party Advisory
cve@mitre.orghttps://github.com/libgit2/libgit2/releases/tag/v0.26.6Release Notes, Third Party Advisory
cve@mitre.orghttps://github.com/libgit2/libgit2/releases/tag/v0.27.4Release Notes, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2018/08/msg00024.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2022/03/msg00031.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406Exploit, Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.suse.com/show_bug.cgi?id=1104641Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/libgit2/libgit2/releases/tag/v0.26.6Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/libgit2/libgit2/releases/tag/v0.27.4Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/08/msg00024.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/03/msg00031.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.htmlThird Party Advisory
Impacted products
Vendor Product Version
debian debian_linux 8.0
debian debian_linux 9.0
libgit2 libgit2 *
libgit2 libgit2 *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
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      "nodes": [
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          "cpeMatch": [
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              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
              "vulnerable": true
            },
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              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
              "vulnerable": true
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          "negate": false,
          "operator": "OR"
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    },
    {
      "nodes": [
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              "matchCriteriaId": "89FF27DE-63AA-49F8-942C-D55095953C5E",
              "versionEndExcluding": "0.26.6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:libgit2:libgit2:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5A27D980-CE50-4F8E-ACF8-F87D4A924FF5",
              "versionEndExcluding": "0.27.4",
              "versionStartIncluding": "0.27.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, a remote attacker can send a crafted smart-protocol \"ng\" packet that lacks a \u0027\\0\u0027 byte to trigger an out-of-bounds read that leads to DoS."
    },
    {
      "lang": "es",
      "value": "En ng_pkt en transports/smart_pkt.c en libgit2 antes de 0.26.6 y 0.27.x antes de 0.27.4, un atacante remoto puede enviar un paquete \"ng\" de protocolo inteligente manipulado que le falte un byte \"\\0\" para activar una lectura fuera de l\u00edmites que conduzca a una denegaci\u00f3n de servicio (DoS)."
    }
  ],
  "id": "CVE-2018-15501",
  "lastModified": "2026-06-17T01:42:39.383",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-08-18T02:29:01.713",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
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        "Third Party Advisory"
      ],
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
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    },
    {
      "source": "cve@mitre.org",
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    },
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      "source": "cve@mitre.org",
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      "source": "cve@mitre.org",
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    {
      "source": "cve@mitre.org",
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      "source": "cve@mitre.org",
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    },
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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