CVE-2022-20785

HIGHEPSS 94th pctl

7.5

CVSS v3

Description

On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in HTML file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog. This advisory will be updated as additional information becomes available.

CWE-401Missing Release of Memory (Memory Leak)

How to fix

Remediation Available

clamavDebian

Fixed in:0.103.6+dfsg-0+deb11u1CVE-2022-20785

Fixed in:0.103.6+dfsg-1CVE-2022-20785

clamavUbuntu

Fixed in:0.103.6+dfsg-0ubuntu0.14.04.1+esm1USN-5423-2

Fixed in:0.103.6+dfsg-0ubuntu0.16.04.1+esm1USN-5423-2

Fixed in:0.103.6+dfsg-0ubuntu0.18.04.1USN-5423-1

Fixed in:0.103.6+dfsg-0ubuntu0.20.04.1USN-5423-1

Fixed in:0.103.6+dfsg-0ubuntu0.22.04.1USN-5423-1

ClamAVWindows application

Affected:0.104.0 0.104.2Fixed in:0.104.2Cisco Systems, Inc.

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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

7.01%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Third-Party Advisory2

Other references4

Related Vulnerabilities

Other CWE-401 (Missing Release of Memory (Memory Leak)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13934	High	7.5	64%	-	Fix
CVE-2016-6304	High	7.5	63%	-	Fix
CVE-2019-12265	Medium	5.3	60%	-	Fix
CVE-2001-0136	Medium	5.0	45%	-	-
CVE-2016-4232	High	7.5	36%	-	-
CVE-2001-0543	Medium	5.0	19%	-	-

Common questions

How do I fix CVE-2022-20785?

Published advisories record a fix for 3 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2022-20785 being actively exploited?

Not that we know of. CVE-2022-20785 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 7.0% is the estimated probability that it will be exploited in the next 30 days. That is higher than 94% of all scored CVEs.

How severe is CVE-2022-20785?

CVE-2022-20785 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2022-20785 affect?

Published advisories record a fix for clamav (Debian), clamav (Ubuntu), ClamAV (Windows application). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.