CVE-2021-34334: Denial of service due to integer overflow in loop counter
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 Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2021-34334?
CVE-2021-34334 has a severity rating that indicates it can lead to denial of service due to an infinite loop.
How do I fix CVE-2021-34334?
To fix CVE-2021-34334, you should update Exiv2 to a version higher than 0.27.4.
What software is affected by CVE-2021-34334?
CVE-2021-34334 affects Exiv2 versions up to and including 0.27.4, as well as certain Fedora and Debian distributions.
What can an attacker do with CVE-2021-34334?
An attacker can exploit CVE-2021-34334 to cause an infinite loop when Exiv2 processes a specially crafted image file.
Is there a workaround for CVE-2021-34334?
There are no known workarounds for CVE-2021-34334; the best approach is to update the affected software.