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›vulnerability›CVE-2021-37621
Name
CVE-2021-37621
Source
NVD ( link)Debian ( link)
Description
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An infinite loop was found in Exiv2 versions v0.27.4 and earlier. The infinite loop is triggered when Exiv2 is used to print 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. Note that this bug is only triggered when printing the image ICC profile, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p C`). The bug is fixed in version v0.27.5.
CWEs
CWE-835 CWE-835
Published Date
Updated Date
Workaround
-
Advisories
https://github.com/Exiv2/exiv2/pull/1778Patch
https://github.com/Exiv2/exiv2/security/advisories/GHSA-m479-7frc-gqqgThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00004.htmlMailing List
https://github.com/Exiv2/exiv2/pull/1778Patch
https://github.com/Exiv2/exiv2/security/advisories/GHSA-m479-7frc-gqqgThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00004.htmlMailing List

Analysis#

Affected Component
Analysis
exiv2
Patched

Vulnerability Ratings#

5.5
CVSSv31
5.5
CVSSv31
4.3
CVSSv2

Others affected components#

Name
Project
Project Version
Version
Status
exiv2
buildroot
2025.02.x
0.28.8
Not Affected
exiv2
buildroot
master
0.28.8
Not Affected
exiv2
yocto
master
0.28.8
Not Affected
exiv2
yocto
scarthgap
0.28.3
Not Affected

Resolved with patches#

exiv2 (yocto:kirkstone)

#
Title
Author
Resolve
1
dirLength == 0 can cause an infinite loop.
Kevin Backhouse <kevinbackhouse@github.com>
CVE-2021-37621
2
Defensive programming in Image::printIFDStructure
Kevin Backhouse <kevinbackhouse@github.com>
CVE-2021-37621