Vulnerability-Lookup

OESA-2021-1187 (CVE-2021-27506)

Vulnerability from osv_openeuler – Published: 2021-05-15 11:04 – Updated: 2026-08-06 11:04 – Source website

Summary

clamav security update

Details

Clam AntiVirus (clamav) is an open source antivirus engine for detecting trojans, viruses, malware & other malicious threats. The main purpose of this software is the integration with mail servers (attachment scanning). The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs are based on a shared library distributed with the Clam AntiVirus package, which you can use with your own software. he virus database is based on the virus database from OpenAntiVirus, but contains additional signatures and is KEPT UP TO DATE.

Security Fix(es):

The ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png files. This affect Netasq versions 9.1.0 to 9.1.11 and SNS versions 1.0.0 to 4.2.0. This issue is fixed in SNS 3.7.19, 3.11.7 and 4.2.1.(CVE-2021-27506)

Severity

5.5 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

URL

Type

	https://openeuler.org/en/security/safety-bulletin…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-27506	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "clamav-debugsource-0.103.2-1.oe1.aarch64.rpm",
          "clamav-milter-0.103.2-1.oe1.aarch64.rpm",
          "clamav-debuginfo-0.103.2-1.oe1.aarch64.rpm",
          "clamd-0.103.2-1.oe1.aarch64.rpm",
          "clamav-update-0.103.2-1.oe1.aarch64.rpm",
          "clamav-devel-0.103.2-1.oe1.aarch64.rpm",
          "clamav-help-0.103.2-1.oe1.aarch64.rpm",
          "clamav-0.103.2-1.oe1.aarch64.rpm"
        ],
        "noarch": [
          "clamav-filesystem-0.103.2-1.oe1.noarch.rpm",
          "clamav-data-0.103.2-1.oe1.noarch.rpm"
        ],
        "src": [
          "clamav-0.103.2-1.oe1.src.rpm"
        ],
        "x86_64": [
          "clamav-help-0.103.2-1.oe1.x86_64.rpm",
          "clamav-milter-0.103.2-1.oe1.x86_64.rpm",
          "clamav-debuginfo-0.103.2-1.oe1.x86_64.rpm",
          "clamav-0.103.2-1.oe1.x86_64.rpm",
          "clamav-debugsource-0.103.2-1.oe1.x86_64.rpm",
          "clamav-update-0.103.2-1.oe1.x86_64.rpm",
          "clamav-devel-0.103.2-1.oe1.x86_64.rpm",
          "clamd-0.103.2-1.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "clamav",
        "purl": "pkg:rpm/openEuler/clamav\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.103.2-1.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Clam AntiVirus (clamav) is an open source antivirus engine for detecting trojans, viruses, malware \u0026amp; other malicious threats. The main purpose of this software is the integration with mail servers (attachment scanning). The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs are based on a shared library distributed with the Clam AntiVirus package, which you can use with your own software. he virus database is based on the virus database from OpenAntiVirus, but contains additional signatures and is KEPT UP TO DATE.\r\n\r\nSecurity Fix(es):\r\n\r\nThe ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png files. This affect Netasq versions 9.1.0 to 9.1.11 and SNS versions 1.0.0 to 4.2.0. This issue is fixed in SNS 3.7.19, 3.11.7 and 4.2.1.(CVE-2021-27506)",
  "id": "OESA-2021-1187",
  "modified": "2026-08-06T11:04:25Z",
  "published": "2021-05-15T11:04:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1187"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27506"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "clamav security update",
  "upstream": [
    "CVE-2021-27506"
  ]
}

CVE-2021-27506 (GCVE-0-2021-27506)

Vulnerability from cvelistv5 – Published: 2021-03-19 14:28 – Updated: 2024-08-03 21:26

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://advisories.stormshield.eu/2021-003/	x_refsource_CONFIRM
https://blog.clamav.net/2021/02/clamav-01031-patc…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T21:26:09.160Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://advisories.stormshield.eu/2021-003/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://blog.clamav.net/2021/02/clamav-01031-patch-release.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png files. This affect Netasq versions 9.1.0 to 9.1.11 and SNS versions 1.0.0 to 4.2.0. This issue is fixed in SNS 3.7.19, 3.11.7 and 4.2.1."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-04-12T15:27:46.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://advisories.stormshield.eu/2021-003/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://blog.clamav.net/2021/02/clamav-01031-patch-release.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-27506",
          "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": "The ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png files. This affect Netasq versions 9.1.0 to 9.1.11 and SNS versions 1.0.0 to 4.2.0. This issue is fixed in SNS 3.7.19, 3.11.7 and 4.2.1."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://advisories.stormshield.eu/2021-003/",
              "refsource": "CONFIRM",
              "url": "https://advisories.stormshield.eu/2021-003/"
            },
            {
              "name": "https://blog.clamav.net/2021/02/clamav-01031-patch-release.html",
              "refsource": "MISC",
              "url": "https://blog.clamav.net/2021/02/clamav-01031-patch-release.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-27506",
    "datePublished": "2021-03-19T14:28:20.000Z",
    "dateReserved": "2021-02-19T00:00:00.000Z",
    "dateUpdated": "2024-08-03T21:26:09.160Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

OESA-2021-1187 (CVE-2021-27506)

CVE-2021-27506 (GCVE-0-2021-27506)

Tags

Sightings

Nomenclature

Related by attack behaviour