CVE-2021-37616

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A null pointer dereference was found in Exiv2 versions v0.27.4 and earlier. The null pointer dereference is triggered when Exiv2 is used to print the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when printing the interpreted (translated) data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p t` or `-P t`). The bug is fixed in version v0.27.5.

CVSS v3 5.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/Exiv2/exiv2/pull/1758	Patch Third Party Advisory
https://github.com/Exiv2/exiv2/security/advisories/GHSA-54f7-vvj7-545w	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/
https://security.gentoo.org/glsa/202312-06

Configurations

Configuration 1 (hide)

cpe:2.3:a:exiv2:exiv2:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:33:::::::*
	cpe:2.3:o:fedoraproject:fedora:34:::::::*

History

No history.

Information

Published : 2021-08-09 19:15

Updated : 2023-12-22 10:15

NVD link : CVE-2021-37616

Mitre link : CVE-2021-37616

CVE.ORG link : CVE-2021-37616

JSON object : View

Products Affected

fedoraproject

fedora

exiv2

exiv2

CWE

CWE-476

NULL Pointer Dereference

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A null pointer dereference was found in Exiv2 versions v0.27.4 and earlier. The null pointer dereference is triggered when Exiv2 is used to print the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when printing the interpreted (translated) data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p t` or `-P t`). The bug is fixed in version v0.27.5."}, {"lang": "es", "value": "Exiv2 es una utilidad de l\u00ednea de comandos y una biblioteca C++ para leer, escribir, borrar y modificar los metadatos de los archivos de imagen. En versiones v0.27.4 y anteriores a Exiv2 se encontr\u00f3 una desreferencia de puntero null. La desreferencia de puntero null es desencadenada cuando Exiv2 es usado para imprimir los metadatos de un archivo de imagen dise\u00f1ado. Un atacante podr\u00eda explotar potencialmente la vulnerabilidad para causar una denegaci\u00f3n de servicio, si puede enga\u00f1ar a la v\u00edctima para que ejecute Exiv2 en un archivo de imagen dise\u00f1ado. Tenga en cuenta que este bug s\u00f3lo es desencadenado cuando se imprimen los datos interpretados (traducidos), que es una operaci\u00f3n de Exiv2 que es usada con menos frecuencia y que requiere una opci\u00f3n adicional en la l\u00ednea de comandos (\"-p t\" o \"-P t\"). 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