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GSD-2020-6820

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2020-6820",
    "description": "Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird \u003c 68.7.0, Firefox \u003c 74.0.1, and Firefox ESR \u003c 68.6.1.",
    "id": "GSD-2020-6820",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-6820.html",
      "https://www.debian.org/security/2020/dsa-4656",
      "https://www.debian.org/security/2020/dsa-4653",
      "https://access.redhat.com/errata/RHSA-2020:1496",
      "https://access.redhat.com/errata/RHSA-2020:1495",
      "https://access.redhat.com/errata/RHSA-2020:1489",
      "https://access.redhat.com/errata/RHSA-2020:1488",
      "https://access.redhat.com/errata/RHSA-2020:1341",
      "https://access.redhat.com/errata/RHSA-2020:1340",
      "https://access.redhat.com/errata/RHSA-2020:1339",
      "https://access.redhat.com/errata/RHSA-2020:1338",
      "https://ubuntu.com/security/CVE-2020-6820",
      "https://advisories.mageia.org/CVE-2020-6820.html",
      "https://security.archlinux.org/CVE-2020-6820",
      "https://linux.oracle.com/cve/CVE-2020-6820.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-6820"
      ],
      "details": "Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird \u003c 68.7.0, Firefox \u003c 74.0.1, and Firefox ESR \u003c 68.6.1.",
      "id": "GSD-2020-6820",
      "modified": "2023-12-13T01:21:54.780348Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "cveID": "CVE-2020-6820",
      "dateAdded": "2021-11-03",
      "dueDate": "2022-05-03",
      "product": "ReadableStream",
      "requiredAction": "Apply updates per vendor instructions.",
      "shortDescription": "A race condition can cause a use-after-free when handling a ReadableStream. This vulnerability affects Thunderbird \u003c 68.7.0, Firefox \u003c 74.0.1, and Firefox ESR \u003c 68.6.1.",
      "vendorProject": "Mozilla",
      "vulnerabilityName": "Mozilla Firefox 74 and Firefox ESR 68.6 ReadableStream vulnerability"
    },
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                          "version_value": "68.7.0"
                        }
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                    }
                  },
                  {
                    "product_name": "Firefox",
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                          "version_affected": "\u003c",
                          "version_value": "74.0.1"
                        }
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                  },
                  {
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          }
        ]
      },
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                "value": "Use-after-free when handling a ReadableStream"
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      "references": {
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          },
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          },
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            "refsource": "MISC",
            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1626728"
          },
          {
            "name": "USN-4335-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4335-1/"
          }
        ]
      }
    },
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      },
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          }
        ]
      },
      "problemtype": {
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                "value": "Use-after-free when handling a ReadableStream"
              }
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            "url": "https://www.mozilla.org/security/advisories/mfsa2020-11/"
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          },
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    },
    "nvd.nist.gov": {
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                "vulnerable": true
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            }
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        },
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              "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1626728",
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            },
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            }
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-07-21T11:39Z",
      "publishedDate": "2020-04-24T16:15Z"
    }
  }
}



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