Vulnerability-Lookup

CNVD-2021-28300

Vulnerability from cnvd - Published: 2021-04-15

Title

Clam AntiVirus无限循环漏洞

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 0.103.0、0.103.1版中的Excel XLM宏分析模块存在无限循环漏洞。该漏洞源于错误处理不当。攻击者可通过将特制Excel文件发送到受影响的设备利用该漏洞导致ClamAV扫描进程崩溃，从而可导致拒绝服务。

Severity

高

Patch Name

Clam AntiVirus无限循环漏洞的补丁

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-2021-1252

Impacted products

Name
['ClamAV Clamav 0.103.0', 'ClamAV Clamav 0.103.1']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1252",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1252"
    }
  },
  "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 0.103.0\u30010.103.1\u7248\u4e2d\u7684Excel XLM\u5b8f\u5206\u6790\u6a21\u5757\u5b58\u5728\u65e0\u9650\u5faa\u73af\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u9519\u8bef\u5904\u7406\u4e0d\u5f53\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5c06\u7279\u5236Excel\u6587\u4ef6\u53d1\u9001\u5230\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\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-2021-28300",
  "openTime": "2021-04-15",
  "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 0.103.0\u30010.103.1\u7248\u4e2d\u7684Excel XLM\u5b8f\u5206\u6790\u6a21\u5757\u5b58\u5728\u65e0\u9650\u5faa\u73af\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u9519\u8bef\u5904\u7406\u4e0d\u5f53\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5c06\u7279\u5236Excel\u6587\u4ef6\u53d1\u9001\u5230\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\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\u65e0\u9650\u5faa\u73af\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "ClamAV Clamav 0.103.0",
      "ClamAV Clamav 0.103.1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1252",
  "serverity": "\u9ad8",
  "submitTime": "2021-04-09",
  "title": "Clam AntiVirus\u65e0\u9650\u5faa\u73af\u6f0f\u6d1e"
}

CVE-2021-1252 (GCVE-0-2021-1252)

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

Title

Clam AntiVirus (ClamAV) Excel XLM Parser Denial of Service Vulnerability

Summary

A vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper error handling that may result in an infinite loop. An attacker could exploit this vulnerability by sending a crafted Excel file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process hang, 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-20 - Improper Input Validation

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://blog.clamav.net/2021/04/clamav-01032-secu…	vendor-advisoryx_refsource_CISCO

Impacted products

1 product

Vendor	Product	Version
Cisco	ClamAV	Affected: 0.103.0 Affected: 0.103.1

Date Public

2021-04-08 00:00

Show details on NVD website

JSON

To clipboard

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      "metrics": [
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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.

Detection rules are retrieved from Rulezet.

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.