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CVE-2021-29457

Type: 
Unavailable / Other
Severity: 
Medium
Publication date: 
04/19/2021
Last modified: 
05/03/2021
Description
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.
Impact
Access Vector: Through network
Access Complexity: Media
Authentication: Not required to exploit
Impact Type: Partially affects on system integrity + Partially affects on system confidentiality + Partially affects on system availability
Vulnerable software and versions
  • cpe:2.3:a:exiv2:exiv2:*:*:*:*:*:*:*:*
To consult the complete list of products and versions see this page
References to Advisories, Solutions, and Tools
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