CVE-2021-37620: Out-of-bounds read in XmpTextValue::read()
First published: Mon Aug 09 2021(Updated: )
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.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| CentOS Dos2unix | <0.27.5 | |
| Fedora | =33 | |
| Fedora | =34 | |
| Debian | =10.0 |
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Reference Links
- https://github.com/Exiv2/exiv2/pull/1769
- https://github.com/Exiv2/exiv2/security/advisories/GHSA-v5g7-46xf-h728
- https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/
- https://security.gentoo.org/glsa/202312-06
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.
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