Is CVE-2021-34334 in the CISA KEV catalog?

No. CVE-2021-34334 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-34334?

CVE-2021-34334 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-34334?

CVE-2021-34334 has an EPSS score of 1.10% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-34334?

Upgrade exiv2 on debian 11 to 0.27.3-3+deb11u2 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2021-34334

MEDIUM

5.5

CVSS v3

NVD

Description

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An infinite loop is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.5.

CWE-835

How to fix

Remediation Available

exiv2Debian

Fixed in:0.27.3-3+deb11u2CVE-2021-34334

Fixed in:0.27.5-1CVE-2021-34334

exiv2Ubuntu

Fixed in:0.25-2.1ubuntu16.04.7+esm4USN-5043-1

Fixed in:0.25-3.1ubuntu0.18.04.11USN-5043-1

Fixed in:0.27.2-8ubuntu2.6USN-5043-1

libexiv2-14Ubuntu

Fixed in:0.25-2.1ubuntu16.04.7+esm4USN-5043-1

Fixed in:0.25-3.1ubuntu0.18.04.11USN-5043-1

libexiv2-27Ubuntu

Fixed in:0.27.2-8ubuntu2.6USN-5043-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.10%probability of exploitation in 30 days

62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Patch2

Third-Party Advisory1

lists.debian.org

Other references3

Related Vulnerabilities

Other CWE-835 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13935	High	7.5	88%	-	Fix
CVE-2020-36227	High	7.5	78%	-	Fix
CVE-2022-0778	High	7.5	71%	-	Fix
CVE-2019-14241	High	7.5	70%	-	-
CVE-2017-16944	High	7.5	63%	-	Fix
CVE-2024-20353	High	8.6	63%	KEV	-

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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.