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CVE-2021-29457 PUBLISHED

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, 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 v0.27.4.

EPSS 1.51% · 81.1th percentile

Risk Scores

EPSS Score
1.51%
81.1th percentile

Affected Products

VendorProductVersions
Ubuntu:18.04:LTSexiv20, 0.25-3.1ubuntu0.18.04.5, 0.25-3.1ubuntu0.18.04.4
Ubuntu:20.04:LTSexiv20.25-4ubuntu3, 0.25-4ubuntu2, 0.27.2-8ubuntu2
Ubuntu:Pro:16.04:LTSexiv20.25-2.1ubuntu16.04.3, 0.25-2.1ubuntu16.04.2, 0.25-2.1ubuntu16.04.1

Timeline

References

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