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.

CVSS v3 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/Exiv2/exiv2/commit/f9308839198aca5e68a65194f151a1de92398f54	Patch Third Party Advisory
https://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9p	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3HKXR6JOVKMBE4HY4FDXNVZGNCQG6T3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NDMZTVQAZSMLPTDVDYLBHAAF7I5QXVYQ/
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 : 2021-04-30 19:15

Updated : 2023-12-22 10:15

NVD link : CVE-2021-29464

Mitre link : CVE-2021-29464

CVE.ORG link : CVE-2021-29464

JSON object : View

Products Affected

fedoraproject

fedora

exiv2

exiv2

CWE

CWE-787

Out-of-bounds Write

CWE-122

Heap-based Buffer Overflow

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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."}, {"lang": "es", "value": "Exiv2 es una utilidad de l\u00ednea de comandos y una biblioteca C++ para leer, escribir, eliminar y modificar los metadatos de archivos de imagen. Se encontr\u00f3 un desbordamiento del b\u00fafer de la memoria en Exiv2 versiones v0.27.3 y anteriores. El desbordamiento de la pila es activada cuando se usa Exiv2 para escribir metadatos en un archivo de imagen dise\u00f1ado. Un atacante podr\u00eda explotar potencialmente la vulnerabilidad para conseguir una ejecuci\u00f3n del c\u00f3digo, si puede enga\u00f1ar a la v\u00edctima para ejecutar Exiv2 en un archivo de imagen dise\u00f1ado. Tome en cuenta que este bug solo es activado al escribir los metadatos, que es una operaci\u00f3n Exiv2 que es usado con menos frecuencia que leer los metadatos. Por ejemplo, para desencadenar el bug en la aplicaci\u00f3n de l\u00ednea de comandos Exiv2, es necesario agregar un argumento de l\u00ednea de comando adicional como \"insert\". El bug se corrigi\u00f3 en la versi\u00f3n v0.27.4."}], "lastModified": "2023-12-22T10:15:08.820", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:exiv2:exiv2:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0A049EBD-7A7E-458F-9ABD-F6626DDEABB9", "versionEndExcluding": "0.27.4"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194"}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}