CVE-2021-34334

Denial of service due to integer overflow in loop counter

MEDIUM
5.5
CVSS Score
Published: August 9, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 03:55 AM UTC
3 products affected across 3 vendorsDebian LinuxFedoraExiv2

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Severity
MEDIUM5.5
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

CVSS

5.5MEDIUMGitHub_M
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-835

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