CVE & CISA-KEV Catalog

CVE-2021-1404

HIGHEPSS 81th pctl
7.5
CVSS v3
NVD

Description

A vulnerability in the PDF 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 buffer size tracking that may result in a heap buffer over-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 to crash, resulting in a denial of service condition.

CWE-20Improper Input ValidationCWE-125Out-of-bounds Read

How to fix

Remediation Available
clamavDebian
Fixed in:0.103.2+dfsg-1CVE-2021-1404
Fixed in:0.103.2+dfsg-1CVE-2021-1404
Fixed in:0.103.2+dfsg-1CVE-2021-1404
Fixed in:0.103.2+dfsg-1CVE-2021-1404
clamavUbuntu
Fixed in:0.103.2+dfsg-0ubuntu0.14.04.1+esm1USN-4918-2
Fixed in:0.103.2+dfsg-0ubuntu0.16.04.1USN-4918-1
Fixed in:0.103.2+dfsg-0ubuntu0.18.04.1USN-4918-1
Fixed in:0.103.2+dfsg-0ubuntu0.20.04.1USN-4918-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

2.22%probability of exploitation in 30 days
81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-3400Critical10.0100%KEV + Ransom-
CVE-2021-45105Medium5.9100%-Fix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2021-21985Critical9.8100%KEV + RansomFix
CVE-2018-7600Critical9.8100%KEV + RansomFix
CVE-2020-3452High7.5100%KEVFix
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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.