Is CVE-2022-20771 in the CISA KEV catalog?

No. CVE-2022-20771 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-20771?

CVE-2022-20771 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2022-20771?

CVE-2022-20771 has an EPSS score of 5.48% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-20771?

Upgrade clamav on debian 11 to 0.103.6+dfsg-0+deb11u1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2022-20771

HIGHEPSS 92th pctl

7.5

CVSS v3

NVD

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 the TIFF 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-399Resource Management Errors

How to fix

Remediation Available

clamavDebian

Fixed in:0.103.6+dfsg-0+deb11u1CVE-2022-20771

Fixed in:0.103.6+dfsg-1CVE-2022-20771

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

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

5.48%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Third-Party Advisory2

Other references4

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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.