Vulnerability-Lookup

CNVD-2018-21240

Vulnerability from cnvd - Published: 2018-10-18

Title

ClamAV拒绝服务漏洞（CNVD-2018-21240）

Description

ClamAV（Clam AntiVirus）是ClamAV团队开发的一套免费且开源的杀毒软件。该软件用于检测木马、病毒、恶意软件和其他恶意威胁。 ClamAV 0.100.2之前版本中的MEW unpacker的‘unmew11()’函数存在安全漏洞。攻击者可借助特制的EXE文件利用该漏洞造成拒绝服务。

Severity

中

Patch Name

ClamAV拒绝服务漏洞（CNVD-2018-21240）的补丁

Patch Description

ClamAV（Clam AntiVirus）是ClamAV团队开发的一套免费且开源的杀毒软件。该软件用于检测木马、病毒、恶意软件和其他恶意威胁。 ClamAV 0.100.2之前版本中的MEW unpacker的‘unmew11()’函数存在安全漏洞。攻击者可借助特制的EXE文件利用该漏洞造成拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://bugzilla.clamav.net/show_bug.cgi?id=12170

Reference

https://bugzilla.clamav.net/show_bug.cgi?id=12170 https://secuniaresearch.flexerasoftware.com/advisories/83000/

Impacted products

Name
ClamAV Clamav <0.100.2

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-15378"
    }
  },
  "description": "ClamAV\uff08Clam AntiVirus\uff09\u662fClamAV\u56e2\u961f\u5f00\u53d1\u7684\u4e00\u5957\u514d\u8d39\u4e14\u5f00\u6e90\u7684\u6740\u6bd2\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u7528\u4e8e\u68c0\u6d4b\u6728\u9a6c\u3001\u75c5\u6bd2\u3001\u6076\u610f\u8f6f\u4ef6\u548c\u5176\u4ed6\u6076\u610f\u5a01\u80c1\u3002\r\n\r\nClamAV 0.100.2\u4e4b\u524d\u7248\u672c\u4e2d\u7684MEW unpacker\u7684\u2018unmew11()\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684EXE\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Micah Snyder",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://bugzilla.clamav.net/show_bug.cgi?id=12170",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-21240",
  "openTime": "2018-10-18",
  "patchDescription": "ClamAV\uff08Clam AntiVirus\uff09\u662fClamAV\u56e2\u961f\u5f00\u53d1\u7684\u4e00\u5957\u514d\u8d39\u4e14\u5f00\u6e90\u7684\u6740\u6bd2\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u7528\u4e8e\u68c0\u6d4b\u6728\u9a6c\u3001\u75c5\u6bd2\u3001\u6076\u610f\u8f6f\u4ef6\u548c\u5176\u4ed6\u6076\u610f\u5a01\u80c1\u3002\r\n\r\nClamAV 0.100.2\u4e4b\u524d\u7248\u672c\u4e2d\u7684MEW unpacker\u7684\u2018unmew11()\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684EXE\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\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": "ClamAV\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-21240\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "ClamAV Clamav \u003c0.100.2"
  },
  "referenceLink": "https://bugzilla.clamav.net/show_bug.cgi?id=12170\r\nhttps://secuniaresearch.flexerasoftware.com/advisories/83000/",
  "serverity": "\u4e2d",
  "submitTime": "2018-10-17",
  "title": "ClamAV\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-21240\uff09"
}

CVE-2018-15378 (GCVE-0-2018-15378)

Vulnerability from cvelistv5 – Published: 2018-10-15 17:00 – Updated: 2024-11-26 14:26

Title

Clam AntiVirus unmew11() Denial of Service Vulnerability

Summary

A vulnerability in ClamAV versions prior to 0.100.2 could allow an attacker to cause a denial of service (DoS) condition. The vulnerability is due to an error related to the MEW unpacker within the "unmew11()" function (libclamav/mew.c), which can be exploited to trigger an invalid read memory access via a specially crafted EXE file.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-25 18:47 UTC

CWE

CWE-125

Assigner

cisco mitre root

References

7 references

URL	Tags
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
https://bugzilla.clamav.net/show_bug.cgi?id=12170	x_refsource_CONFIRM
https://secuniaresearch.flexerasoftware.com/advis…	third-party-advisoryx_refsource_SECUNIA
https://usn.ubuntu.com/3789-2/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3789-1/	vendor-advisoryx_refsource_UBUNTU
https://www.flexera.com/company/secunia-research/…	x_refsource_MISC
https://security.gentoo.org/glsa/201904-12	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
Cisco	ClamAV	Affected: unspecified , < 0.100.2 (custom)

Date Public

2018-10-03 00:00

Show details on NVD website

JSON

To clipboard

{
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        ],
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        "metrics": [
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            "other": {
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                "id": "CVE-2018-15378",
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                  },
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                  }
                ],
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                "version": "2.0.3"
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        },
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    "cna": {
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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.