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.

References[email protected]/message/2XQT5F5IINTDYDAFGVGQZ7PMMLG7I5ZZ/[email protected]/message/JWZLDECIXXW3CCZ3RS4A3NG5X5VE4WZM/[email protected]/message/LBKWLTXM7IKZ4PVGKLUQVAVFAYGGF7QR/[email protected]/message/P2A5GMJEXQ5Q76JK6F6VKK5JYCLVFGKN/


Source: MITRE

Published: 2021-04-23

Updated: 2022-06-04

Type: CWE-125

Risk Information


Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM


Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM