CVE-2021-29457
Heap buffer overflow in Exiv2::Jp2Image::doWriteMetadata
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
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.
Exiv2 es una utilidad de línea de comandos y una biblioteca C++ para leer, escribir, eliminar y modificar los metadatos de archivos de imagen. Se encontró un desbordamiento del búfer de pila en Exiv2 versiones v0.27.3 y anteriores. El desbordamiento de la pila es desencadenado cuando es usado Exiv2 para escribir metadatos en un archivo de imagen diseñado. Un atacante podría explotar potencialmente la vulnerabilidad para obtener una ejecución de código, si puede engañar a la víctima para que ejecute Exiv2 en un archivo de imagen diseñado. Note que este bug solo es desencadenado cuando _writing_ los metadatos, que es una operación Exiv2 que es usada con menos frecuencia que _reading_ los metadatos. Por ejemplo, para desencadenar el bug en la aplicación de línea de comandos Exiv2, debe agregar un argumento de línea de comando adicional como "insert". El bug es corregido en versión v0.27.4
There's a flaw in exiv2. An attacker who is able to supply a crafted file to an application linked against exiv2 could trigger an out-of-bounds write in heap memory. The highest risk of this flaw is to application confidentiality, integrity, and availability.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-03-30 CVE Reserved
- 2021-04-19 CVE Published
- 2024-01-03 EPSS Updated
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-122: Heap-based Buffer Overflow
- CWE-787: Out-of-bounds Write
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| https://github.com/Exiv2/exiv2/security/advisories/GHSA-v74w-h496-cgqm | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2021/08/msg00028.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://github.com/Exiv2/exiv2/issues/1529 | 2024-08-03 |
| URL | Date | SRC |
|---|---|---|
| https://github.com/Exiv2/exiv2/pull/1534 | 2023-12-22 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Exiv2 Search vendor "Exiv2" | Exiv2 Search vendor "Exiv2" for product "Exiv2" | < 0.27.4 Search vendor "Exiv2" for product "Exiv2" and version " < 0.27.4" | - |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 33 Search vendor "Fedoraproject" for product "Fedora" and version "33" | - |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 34 Search vendor "Fedoraproject" for product "Fedora" and version "34" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
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