gsd-2021-3657
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A flaw was found in mbsync versions prior to 1.4.4. Due to inadequate handling of extremely large (>=2GiB) IMAP literals, malicious or compromised IMAP servers, and hypothetically even external email senders, could cause several different buffer overflows, which could conceivably be exploited for remote code execution.
Aliases
Aliases
CVE-2021-3657


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-3657",
    "description": "A flaw was found in mbsync versions prior to 1.4.4. Due to inadequate handling of extremely large (\u003e=2GiB) IMAP literals, malicious or compromised IMAP servers, and hypothetically even external email senders, could cause several different buffer overflows, which could conceivably be exploited for remote code execution.",
    "id": "GSD-2021-3657",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-3657.html",
      "https://security.archlinux.org/CVE-2021-3657"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-3657"
      ],
      "details": "A flaw was found in mbsync versions prior to 1.4.4. Due to inadequate handling of extremely large (\u003e=2GiB) IMAP literals, malicious or compromised IMAP servers, and hypothetically even external email senders, could cause several different buffer overflows, which could conceivably be exploited for remote code execution.",
      "id": "GSD-2021-3657",
      "modified": "2023-12-13T01:23:34.019849Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "patrick@puiterwijk.org",
        "ID": "CVE-2021-3657",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "isync",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "isync 1.4.4"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
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          }
        ]
      },
      "problemtype": {
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              {
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                "value": "CWE-119"
              }
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          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2028932",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2028932"
          },
          {
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            "refsource": "MISC",
            "url": "https://www.openwall.com/lists/oss-security/2021/12/03/1"
          },
          {
            "name": "[debian-lts-announce] 20220701 [SECURITY] [DLA 3066-1] isync security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html"
          },
          {
            "name": "GLSA-202208-15",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202208-15"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:isync_project:isync:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.4.4",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*",
                "cpe_name": [],
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            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
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                "cpe_name": [],
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        ]
      },
      "cve": {
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          "ID": "CVE-2021-3657"
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        "data_type": "CVE",
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        "description": {
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              "value": "A flaw was found in mbsync versions prior to 1.4.4. Due to inadequate handling of extremely large (\u003e=2GiB) IMAP literals, malicious or compromised IMAP servers, and hypothetically even external email senders, could cause several different buffer overflows, which could conceivably be exploited for remote code execution."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-119"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.openwall.com/lists/oss-security/2021/12/03/1",
              "refsource": "MISC",
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            {
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              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2028932"
            },
            {
              "name": "[debian-lts-announce] 20220701 [SECURITY] [DLA 3066-1] isync security update",
              "refsource": "MLIST",
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                "Third Party Advisory"
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              "url": "https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html"
            },
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              "url": "https://security.gentoo.org/glsa/202208-15"
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        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "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"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-10-26T13:27Z",
      "publishedDate": "2022-02-18T18:15Z"
    }
  }
}


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