Description
A flaw was found in BusyBox dpkg. The write_status_file() function does not reset a field cursor between package stanzas. When two packages are removed in a single invocation and the first stanza is larger than the second, the second package stanza can be dropped from the status file, causing limited data corruption.
Published: 2026-10-14
Score: 3.3 Low
EPSS: n/a
KEV: No
Impact: Status file corruption
Action: Assess Impact
AI Analysis

Impact

A flaw exists in BusyBox’s dpkg implementation where the write_status_file() function does not reset its field cursor between package stanzas. When two packages are removed in a single invocation and the first package’s stanza is larger than the second, the second package’s entry can be omitted from the status file, resulting in limited data corruption of that file.

Affected Systems

Red Hat Hardened Images, specifically the BusyBox dpkg component embedded in the Hummingbird 1 image. No explicit version range is provided beyond the image designation. Systems that use BusyBox dpkg for critical package management are affected.

Risk and Exploitability

The CVSS score of 3.3 indicates the overall severity is low. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog. The flaw requires a local user with sufficient privileges to invoke the BusyBox dpkg removal operation. The likely attack vector is local privileged access. This operation can lead to corruption of the dpkg status file, which may affect the accuracy of package inventory but does not inherently provide a direct way to elevate privileges or cause denial of service.

Generated by OpenCVE AI on October 14, 2026 at 15:11 UTC.

Remediation

Vendor Workaround

Do not use BusyBox dpkg for package management on systems where package integrity is critical. Remove packages one at a time if BusyBox dpkg must be used. Upstream should reset field_start at the beginning of each stanza iteration in write_status_file().


OpenCVE Recommended Actions

  • Switch to a fully supported package manager (e.g., rpm or upstream dpkg) instead of BusyBox dpkg for critical systems.
  • If relying on BusyBox dpkg, perform package removal one at a time rather than in bulk to avoid status file corruption.
  • Validate the integrity of the dpkg status file after removal operations and restore it from a backup if corruption is detected.

Generated by OpenCVE AI on October 14, 2026 at 15:11 UTC.

Tracking

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Advisories

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History

Wed, 14 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Low


Wed, 14 Oct 2026 11:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 14 Oct 2026 10:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in BusyBox dpkg. The write_status_file() function does not reset a field cursor between package stanzas. When two packages are removed in a single invocation and the first stanza is larger than the second, the second package stanza can be dropped from the status file, causing limited data corruption.
Title Busybox: busybox: dpkg stale field_start pointer causes out-of-bounds read and status file corruption
First Time appeared Redhat
Redhat hummingbird
Weaknesses CWE-125
CPEs cpe:/a:redhat:hummingbird:1
Vendors & Products Redhat
Redhat hummingbird
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}


Subscriptions

Redhat Hummingbird
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-10-14T10:52:14.893Z

Reserved: 2026-09-10T09:52:23.527Z

Link: CVE-2026-88842

cve-icon Vulnrichment

Updated: 2026-10-14T10:52:10.160Z

cve-icon NVD

Status : Received

Published: 2026-10-14T11:17:06.993

Modified: 2026-10-14T11:17:06.993

Link: CVE-2026-88842

cve-icon Redhat

Severity : Low

Publid Date: 2026-10-14T08:45:24Z

Links: CVE-2026-88842 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-14T15:15:02Z

Weaknesses