CVE-2021-29623
Uninitialized variable bug in Exiv2
- State
- Published
- Severity
- 3.6 Low
- Published
- May 13, 2021
- Updated
- Aug 3, 2024
- Reserved
- Mar 30, 2021
Description
Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. A read of uninitialized memory was found in Exiv2 versions v0.27.3 and earlier. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The read of uninitialized memory is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to leak a few bytes of stack memory, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.4.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 3.6 Low | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N | GitHub_M |
Weaknesses
- CWE-908 {"CWE-908":"Use of Uninitialized Resource"}
Affected Products
| Product | Versions |
|---|---|
exiv2Exiv2 |
|
References
- https://github.com/Exiv2/exiv2/security/advisories/GHSA-6253-qjwm-3q4v
- https://github.com/Exiv2/exiv2/pull/1627
- FEDORA-2021-d1d5a0bf0fvendor-advisory
- FEDORA-2021-8253c78bd7vendor-advisory
- FEDORA-2021-bdba47348cvendor-advisory
- FEDORA-2021-8917c5d9d2vendor-advisory
- GLSA-202312-06vendor-advisory
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