Out-of-bounds Read Affecting exiv2/exiv2 package, versions [,0.27.4)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.26% (66th percentile)

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  • Snyk IDSNYK-UNMANAGED-EXIV2EXIV2-2367084
  • published26 Jan 2022
  • disclosed23 Apr 2021
  • creditUnknown

Introduced: 23 Apr 2021

CVE-2021-29470  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade exiv2/exiv2 to version 0.27.4 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read. 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 v0.27.3 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 v0.27.4.

CVSS Scores

version 3.1