CVE-2021-37619: Out-of-bounds read in Exiv2::Jp2Image::encodeJp2Header
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 write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.5.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| CentOS Dos2unix | <=0.27.4 | |
| Fedora | =33 | |
| Fedora | =34 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://github.com/Exiv2/exiv2/pull/1752
- https://github.com/Exiv2/exiv2/security/advisories/GHSA-mxw9-qx4c-6m8v
- 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
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1992175
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1992176
- https://access.redhat.com/errata/RHSA-2021:4173
- https://access.redhat.com/errata/RHSA-2021:4319
- https://access.redhat.com/security/cve/cve-2021-37619
- https://bugzilla.redhat.com/show_bug.cgi?id=1992174
Frequently Asked Questions
What is the severity of CVE-2021-37619?
CVE-2021-37619 has a medium severity rating due to the potential for out-of-bounds reads.
How do I fix CVE-2021-37619?
To fix CVE-2021-37619, update Exiv2 to version 0.27.5 or later.
Which versions of Exiv2 are affected by CVE-2021-37619?
CVE-2021-37619 affects Exiv2 versions 0.27.4 and earlier.
Can CVE-2021-37619 be exploited remotely?
CVE-2021-37619 may be exploited remotely if a user opens a specially crafted image file.
What types of systems are affected by CVE-2021-37619?
CVE-2021-37619 affects systems running Exiv2 up to version 0.27.4 and affected versions of the Fedora operating system.
- agent/type
- agent/first-publish-date
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2021-37619
- agent/title
- agent/severity
- agent/weakness
- agent/remedy
- agent/references
- agent/description
- agent/event
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/source
- agent/author
- agent/softwarecombine
- agent/tags
- collector/nvd-api
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/exiv2
- canonical/centos dos2unix
- version/centos dos2unix/0.27.4
- vendor/fedoraproject
- canonical/fedora
- version/fedora/33
- version/fedora/34