Medium severity5.0NVD Advisory· Published Dec 27, 2022· Updated Jun 17, 2026
CVE-2021-4287
CVE-2021-4287
Description
A vulnerability, which was classified as problematic, was found in ReFirm Labs binwalk up to 2.3.2. Affected is an unknown function of the file src/binwalk/modules/extractor.py of the component Archive Extraction Handler. The manipulation leads to symlink following. It is possible to launch the attack remotely. Upgrading to version 2.3.3 is able to address this issue. The name of the patch is fa0c0bd59b8588814756942fe4cb5452e76c1dcd. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216876.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
binwalkPyPI | < 2.3.3 | 2.3.3 |
Affected products
3- ReFirm Labs/binwalkv5Range: 2.3.0
Patches
Vulnerability mechanics
References
7- github.com/ReFirmLabs/binwalk/commit/fa0c0bd59b8588814756942fe4cb5452e76c1dcdnvdPatchThird Party AdvisoryWEB
- github.com/ReFirmLabs/binwalk/pull/556nvdPatchThird Party AdvisoryWEB
- github.com/ReFirmLabs/binwalk/releases/tag/v2.3.3nvdRelease NotesThird Party AdvisoryWEB
- github.com/advisories/GHSA-8m3f-g62j-3vx8ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-4287ghsaADVISORY
- vuldb.comnvdThird Party AdvisoryWEB
- vuldb.comnvdThird Party AdvisoryWEB
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