CVE-2020-3341— ClamAV PDF Parsing Denial of Service Vulnerability
Quick assessment
Affected
Cisco ClamAV
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Clam AntiVirus是ClamAV团队的一款用于检测木马，病毒，恶意软件和其他恶意威胁的开源杀毒引擎。 Clam AntiVirus 0.101版本至0.102.2版本中的PDF分析模块存在输入验证错误漏洞。攻击者可借助特制的PDF文件利用该漏洞导致拒绝服务。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-3341
Vulnerability Information
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Vulnerability Title
ClamAV PDF Parsing Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the PDF archive parsing module in Clam AntiVirus (ClamAV) Software versions 0.101 - 0.102.2 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a stack buffer overflow read. An attacker could exploit this vulnerability by sending a crafted PDF file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Clam AntiVirus 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Clam AntiVirus是ClamAV团队的一款用于检测木马，病毒，恶意软件和其他恶意威胁的开源杀毒引擎。 Clam AntiVirus 0.101版本至0.102.2版本中的PDF分析模块存在输入验证错误漏洞。攻击者可借助特制的PDF文件利用该漏洞导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2020-3341
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2020-3341 (2)
Mailing List Discussions for CVE-2020-3341 (4)
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ROBJOGJOT44MVDX7RQEACYHQN4LYW5RK/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L5YWYT27SBTV4RZSGFHIQUI4LQVFASWS/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BMTC7I5LGY4FCIZLHPNC4WWC6VNLFER/ vendor-advisory x_refsource_FEDORA
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Security Blog Posts for CVE-2020-3341 (1)
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https://blog.clamav.net/2020/05/clamav-01023-security-patch-released.html vendor-advisory x_refsource_CISCO
IV. Related Vulnerabilities
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CVE-2025-20260
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CVE-2024-20328
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V. Comments for CVE-2020-3341
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