Vulnerability Details CVE-2021-29464
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 42.9%
CVSS Severity
CVSS v3 Score 3.3
CVSS v2 Score 6.8
Products affected by CVE-2021-29464
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cpe:2.3:a:exiv2:exiv2:0.10
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cpe:2.3:a:exiv2:exiv2:0.11
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cpe:2.3:a:exiv2:exiv2:0.12
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cpe:2.3:a:exiv2:exiv2:0.13
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cpe:2.3:a:exiv2:exiv2:0.14
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cpe:2.3:a:exiv2:exiv2:0.15
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cpe:2.3:a:exiv2:exiv2:0.16
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cpe:2.3:a:exiv2:exiv2:0.17
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cpe:2.3:a:exiv2:exiv2:0.17.1
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cpe:2.3:a:exiv2:exiv2:0.18
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cpe:2.3:a:exiv2:exiv2:0.18.1
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cpe:2.3:a:exiv2:exiv2:0.18.2
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cpe:2.3:a:exiv2:exiv2:0.19
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cpe:2.3:a:exiv2:exiv2:0.20
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cpe:2.3:a:exiv2:exiv2:0.21
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cpe:2.3:a:exiv2:exiv2:0.21.1
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cpe:2.3:a:exiv2:exiv2:0.22
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cpe:2.3:a:exiv2:exiv2:0.23
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cpe:2.3:a:exiv2:exiv2:0.24
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cpe:2.3:a:exiv2:exiv2:0.25
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cpe:2.3:a:exiv2:exiv2:0.26
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cpe:2.3:a:exiv2:exiv2:0.27
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cpe:2.3:a:exiv2:exiv2:0.27.1
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cpe:2.3:a:exiv2:exiv2:0.27.2
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cpe:2.3:a:exiv2:exiv2:0.27.3
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cpe:2.3:a:exiv2:exiv2:0.3
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cpe:2.3:a:exiv2:exiv2:0.4
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cpe:2.3:a:exiv2:exiv2:0.5
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cpe:2.3:a:exiv2:exiv2:0.6
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cpe:2.3:a:exiv2:exiv2:0.6.1
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cpe:2.3:a:exiv2:exiv2:0.6.2
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cpe:2.3:a:exiv2:exiv2:0.7
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cpe:2.3:a:exiv2:exiv2:0.8
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cpe:2.3:a:exiv2:exiv2:0.9
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cpe:2.3:a:exiv2:exiv2:0.9.1
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cpe:2.3:o:fedoraproject:fedora:33
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cpe:2.3:o:fedoraproject:fedora:34