CVE-2021-37620: Out-of-bounds read in XmpTextValue::read()
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.4 and earlier. The out-of-bounds read 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
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Exiv2to a version that resolves this vulnerability.Fixed in v0.27.5
Event History
Frequently Asked Questions
What is the severity of CVE-2021-37620?
CVE-2021-37620 is classified as a vulnerability with a high severity due to the potential for an out-of-bounds read.
How do I fix CVE-2021-37620?
To fix CVE-2021-37620, upgrade Exiv2 to version 0.27.5 or later to mitigate the vulnerability.
Which versions of Exiv2 are affected by CVE-2021-37620?
CVE-2021-37620 affects Exiv2 versions 0.27.4 and earlier.
What kind of issue is described by CVE-2021-37620?
CVE-2021-37620 describes an out-of-bounds read vulnerability that can be exploited when reading crafted image metadata.
Which operating systems are impacted by CVE-2021-37620?
CVE-2021-37620 affects users of Exiv2 on Fedora 33, Fedora 34, and Debian Linux 10.0.