Vulnerability-Lookup

CNVD-2021-29114

Vulnerability from cnvd - Published: 2021-04-18

Title

Clam AntiVirus堆缓冲区溢出漏洞

Description

Clam AntiVirus（ClamAV）是一个类UNIX系统上使用的反病毒软件包。主要应用于邮件服务器，采用多线程后台操作，可以自动升级病毒库。 Clam AntiVirus 0.103.1及更早版本中的PDF解析模块存在堆缓冲区溢出漏洞。该漏洞源于缓冲区大小跟踪错误。攻击者可通过发送特制PDF文件利用该漏洞导致ClamAV扫描进程崩溃，从而可导致拒绝服务。

Severity

高

Patch Name

Clam AntiVirus堆缓冲区溢出漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-1405

Impacted products

Name
ClamAV Clam AntiVirus

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1405",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1405"
    }
  },
  "description": "Clam AntiVirus\uff08ClamAV\uff09\u662f\u4e00\u4e2a\u7c7bUNIX\u7cfb\u7edf\u4e0a\u4f7f\u7528\u7684\u53cd\u75c5\u6bd2\u8f6f\u4ef6\u5305\u3002\u4e3b\u8981\u5e94\u7528\u4e8e\u90ae\u4ef6\u670d\u52a1\u5668\uff0c\u91c7\u7528\u591a\u7ebf\u7a0b\u540e\u53f0\u64cd\u4f5c\uff0c\u53ef\u4ee5\u81ea\u52a8\u5347\u7ea7\u75c5\u6bd2\u5e93\u3002\n\nClam AntiVirus 0.103.1\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u7684PDF\u89e3\u6790\u6a21\u5757\u5b58\u5728\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f13\u51b2\u533a\u5927\u5c0f\u8ddf\u8e2a\u9519\u8bef\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7279\u5236PDF\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4ClamAV\u626b\u63cf\u8fdb\u7a0b\u5d29\u6e83\uff0c\u4ece\u800c\u53ef\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-29114",
  "openTime": "2021-04-18",
  "patchDescription": "Clam AntiVirus\uff08ClamAV\uff09\u662f\u4e00\u4e2a\u7c7bUNIX\u7cfb\u7edf\u4e0a\u4f7f\u7528\u7684\u53cd\u75c5\u6bd2\u8f6f\u4ef6\u5305\u3002\u4e3b\u8981\u5e94\u7528\u4e8e\u90ae\u4ef6\u670d\u52a1\u5668\uff0c\u91c7\u7528\u591a\u7ebf\u7a0b\u540e\u53f0\u64cd\u4f5c\uff0c\u53ef\u4ee5\u81ea\u52a8\u5347\u7ea7\u75c5\u6bd2\u5e93\u3002\r\n\r\nClam AntiVirus 0.103.1\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u7684PDF\u89e3\u6790\u6a21\u5757\u5b58\u5728\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f13\u51b2\u533a\u5927\u5c0f\u8ddf\u8e2a\u9519\u8bef\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7279\u5236PDF\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4ClamAV\u626b\u63cf\u8fdb\u7a0b\u5d29\u6e83\uff0c\u4ece\u800c\u53ef\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Clam AntiVirus\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "ClamAV Clam AntiVirus"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1405",
  "serverity": "\u9ad8",
  "submitTime": "2021-04-09",
  "title": "Clam AntiVirus\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2021-1405 (GCVE-0-2021-1405)

Vulnerability from cvelistv5 – Published: 2021-04-08 04:30 – Updated: 2024-11-08 23:25

Title

Clam AntiVirus (ClamAV) PDF Parser Denial of Service Vulnerability

Summary

A vulnerability in the email parsing module in Clam AntiVirus (ClamAV) Software version 0.103.1 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper variable initialization that may result in an NULL pointer read. An attacker could exploit this vulnerability by sending a crafted email to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-08 20:02 UTC

CWE

CWE-120 - Buffer Overflow

Assigner

cisco mitre root

References

3 references

URL	Tags
https://blog.clamav.net/2021/04/clamav-01032-secu…	vendor-advisoryx_refsource_CISCO
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/202104-07	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
Cisco	ClamAV	Affected: unspecified , ≤ 0.103.1 (custom)

Date Public

2021-04-08 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:11:16.920Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html"
          },
          {
            "name": "[debian-lts-announce] 20210414 [SECURITY] [DLA 2626-1] clamav security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00012.html"
          },
          {
            "name": "GLSA-202104-07",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202104-07"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-1405",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-08T20:02:34.550630Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-08T23:25:38.707Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ClamAV",
          "vendor": "Cisco",
          "versions": [
            {
              "lessThanOrEqual": "0.103.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2021-04-08T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the email parsing module in Clam AntiVirus (ClamAV) Software version 0.103.1 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper variable initialization that may result in an NULL pointer read. An attacker could exploit this vulnerability by sending a crafted email to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-120",
              "description": "CWE-120 Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-01T01:06:30.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html"
        },
        {
          "name": "[debian-lts-announce] 20210414 [SECURITY] [DLA 2626-1] clamav security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00012.html"
        },
        {
          "name": "GLSA-202104-07",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/202104-07"
        }
      ],
      "source": {
        "advisory": "https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html",
        "discovery": "UNKNOWN"
      },
      "title": "Clam AntiVirus (ClamAV) PDF Parser Denial of Service Vulnerability",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2021-04-08T12:08:00.000Z",
          "ID": "CVE-2021-1405",
          "STATE": "PUBLIC",
          "TITLE": "Clam AntiVirus (ClamAV) PDF Parser Denial of Service Vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "ClamAV",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_value": "0.103.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cisco"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability in the email parsing module in Clam AntiVirus (ClamAV) Software version 0.103.1 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper variable initialization that may result in an NULL pointer read. An attacker could exploit this vulnerability by sending a crafted email to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "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"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-120 Buffer Overflow"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html",
              "refsource": "CISCO",
              "url": "https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html"
            },
            {
              "name": "[debian-lts-announce] 20210414 [SECURITY] [DLA 2626-1] clamav security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00012.html"
            },
            {
              "name": "GLSA-202104-07",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202104-07"
            }
          ]
        },
        "source": {
          "advisory": "https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2021-1405",
    "datePublished": "2021-04-08T04:30:14.596Z",
    "dateReserved": "2020-11-13T00:00:00.000Z",
    "dateUpdated": "2024-11-08T23:25:38.707Z",
    "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.

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CNVD-2021-29114

CVE-2021-1405 (GCVE-0-2021-1405)

Tags

Sightings

Nomenclature

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