BusyBox romfs volume ID parsing uses unbounded strlen on attacker-controlled metadata, causing a heap buffer overflow when processing crafted filesystem images.

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Fixes

Solution

No solution given by the vendor.


Workaround

Avoid processing untrusted filesystem images with BusyBox blkid or findfs. Use the util-linux versions of these utilities instead (default on Fedora).

History

Wed, 23 Sep 2026 17:15:00 +0000

Type Values Removed Values Added
Description BusyBox romfs volume ID parsing uses unbounded strlen on attacker-controlled metadata, causing a heap buffer overflow when processing crafted filesystem images.
Title Busybox: busybox: romfs volume id parsing performs unbounded memcpy into fixed-size label buffer, causing heap overflow
First Time appeared Redhat
Redhat hummingbird
Weaknesses CWE-787
CPEs cpe:/a:redhat:hummingbird:1
Vendors & Products Redhat
Redhat hummingbird
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-23T17:41:09.077Z

Reserved: 2026-09-10T09:42:04.559Z

Link: CVE-2026-88832

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-23T17:17:18.573

Modified: 2026-09-23T17:17:18.573

Link: CVE-2026-88832

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses