Is CVE-2022-2521 in the CISA KEV catalog?

No. CVE-2022-2521 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-2521?

CVE-2022-2521 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2022-2521?

CVE-2022-2521 has an EPSS score of 0.98% (58th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-2521?

Upgrade tiff on debian 11 to 4.2.0-1+deb11u3 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2022-2521

MEDIUM

6.5

CVSS v3

NVD

Description

It was found in libtiff 4.4.0rc1 that there is an invalid pointer free operation in TIFFClose() at tif_close.c:131 called by tiffcrop.c:2522 that can cause a program crash and denial of service while processing crafted input.

CWE-763

How to fix

Remediation Available

tiffDebian

Fixed in:4.2.0-1+deb11u3CVE-2022-2521

Fixed in:4.4.0-6CVE-2022-2521

libtiff-toolsUbuntu

Fixed in:4.0.3-7ubuntu0.11+esm5USN-5714-1

Fixed in:4.0.6-1ubuntu0.8+esm7USN-5714-1

Fixed in:4.0.9-5ubuntu0.8USN-5714-1

Fixed in:4.1.0+git191117-2ubuntu0.20.04.6USN-5714-1

Fixed in:4.3.0-6ubuntu0.2USN-5714-1

Fixed in:4.4.0-4ubuntu3.1USN-5714-1

tiffUbuntu

Fixed in:4.0.3-7ubuntu0.11+esm5USN-5714-1

Fixed in:4.0.6-1ubuntu0.8+esm7USN-5714-1

Fixed in:4.0.9-5ubuntu0.8USN-5714-1

Fixed in:4.1.0+git191117-2ubuntu0.20.04.6USN-5714-1

Fixed in:4.3.0-6ubuntu0.2USN-5714-1

Fixed in:4.4.0-4ubuntu3.1USN-5714-1

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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.98%probability of exploitation in 30 days

58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Patch2

Third-Party Advisory1

debian.org

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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.