GSD-2018-15501

Vulnerability from gsd - Updated: 2023-12-13 01:22
Details
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.
Aliases
Aliases
CVE-2018-15501
To clipboard 

{
  "GSD": {
    "alias": "CVE-2018-15501",
    "description": "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.",
    "id": "GSD-2018-15501",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-15501.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-15501"
      ],
      "details": "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.",
      "id": "GSD-2018-15501",
      "modified": "2023-12-13T01:22:24.095077Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2018-15501",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "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."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406",
            "refsource": "MISC",
            "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406"
          },
          {
            "name": "https://github.com/libgit2/libgit2/releases/tag/v0.27.4",
            "refsource": "MISC",
            "url": "https://github.com/libgit2/libgit2/releases/tag/v0.27.4"
          },
          {
            "name": "https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html",
            "refsource": "MISC",
            "url": "https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html"
          },
          {
            "name": "https://bugzilla.suse.com/show_bug.cgi?id=1104641",
            "refsource": "MISC",
            "url": "https://bugzilla.suse.com/show_bug.cgi?id=1104641"
          },
          {
            "name": "[debian-lts-announce] 20180825 [SECURITY] [DLA 1477-1] libgit2 security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html"
          },
          {
            "name": "https://github.com/libgit2/libgit2/releases/tag/v0.26.6",
            "refsource": "MISC",
            "url": "https://github.com/libgit2/libgit2/releases/tag/v0.26.6"
          },
          {
            "name": "https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649",
            "refsource": "MISC",
            "url": "https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649"
          },
          {
            "name": "[debian-lts-announce] 20220321 [SECURITY] [DLA 2936-1] libgit2 security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c0.26.6||\u003e=0.27.0 \u003c0.27.4",
          "affected_versions": "All versions before 0.26.6, all versions starting from 0.27.0 before 0.27.4",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-125",
            "CWE-937"
          ],
          "date": "2018-10-12",
          "description": "There is a vulnerability in `ng_pkt` (`transports/smart_pkt.c`) in libgit2 which is wrapped by the rugged gem. 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.",
          "fixed_versions": [
            "0.26.6",
            "0.27.4"
          ],
          "identifier": "CVE-2018-15501",
          "identifiers": [
            "CVE-2018-15501"
          ],
          "not_impacted": "All versions starting from 0.26.6 before 0.27.0, all versions starting from 0.27.4",
          "package_slug": "gem/rugged",
          "pubdate": "2018-08-18",
          "solution": "Upgrade to versions 0.26.6, 0.27.4 or above.",
          "title": "Out-of-bounds Read",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2018-15501",
            "https://bugzilla.suse.com/show_bug.cgi?id=1104641"
          ],
          "uuid": "49aaca07-07ab-4abc-8422-3d16078744c4"
        },
        {
          "affected_range": "\u003c0.26.6||\u003e=0.27.0,\u003c0.27.4",
          "affected_versions": "All versions before 0.26.6, all versions starting from 0.27.0 before 0.27.4",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-125",
            "CWE-937"
          ],
          "date": "2018-10-12",
          "description": "In the library libgit2, which is used by pygit2, a remote attacker can send a crafted smart-protocol `ng` packet that lacks a `\\0` byte to trigger an out-of-bounds read leading to a DoS.",
          "fixed_versions": [
            "0.27.4"
          ],
          "identifier": "CVE-2018-15501",
          "identifiers": [
            "CVE-2018-15501"
          ],
          "not_impacted": "All versions starting from 0.26.6 before 0.27.0, all versions starting from 0.27.4",
          "package_slug": "pypi/pygit2",
          "pubdate": "2018-08-18",
          "solution": "Upgrade to version 0.27.4 or above.",
          "title": "Out-of-bounds Read",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2018-15501",
            "https://bugzilla.suse.com/show_bug.cgi?id=1104641"
          ],
          "uuid": "66b01aac-6cec-46b4-9bd8-63dace15b049"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:libgit2:libgit2:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.26.6",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:libgit2:libgit2:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.27.4",
                "versionStartIncluding": "0.27.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-15501"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-125"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html"
            },
            {
              "name": "https://github.com/libgit2/libgit2/releases/tag/v0.27.4",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Third Party Advisory"
              ],
              "url": "https://github.com/libgit2/libgit2/releases/tag/v0.27.4"
            },
            {
              "name": "https://github.com/libgit2/libgit2/releases/tag/v0.26.6",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Third Party Advisory"
              ],
              "url": "https://github.com/libgit2/libgit2/releases/tag/v0.26.6"
            },
            {
              "name": "https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649"
            },
            {
              "name": "https://bugzilla.suse.com/show_bug.cgi?id=1104641",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.suse.com/show_bug.cgi?id=1104641"
            },
            {
              "name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Issue Tracking",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406"
            },
            {
              "name": "[debian-lts-announce] 20180825 [SECURITY] [DLA 1477-1] libgit2 security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html"
            },
            {
              "name": "[debian-lts-announce] 20220321 [SECURITY] [DLA 2936-1] libgit2 security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "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,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "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
        }
      },
      "lastModifiedDate": "2022-05-11T20:59Z",
      "publishedDate": "2018-08-18T02:29Z"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.