Description
A flaw was found in libstoragemgmt. An attacker with control over a local or virtual storage device could provide specially crafted SCSI (Small Computer System Interface) Vital Product Data (VPD) page 0x80 data. This malformed data, specifically an untrusted page length field, can lead to a stack buffer overflow in the `_sg_parse_vpd_80()` function during serial number parsing. Successful exploitation could result in a denial of service by crashing or destabilizing the process querying the serial number.
Published: 2026-09-21
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service via stack buffer overflow
Action: Apply Patch
AI Analysis

Impact

libstoragemgmt suffers a stack buffer overflow when parsing SCSI Vital Product Data page 0x80. An attacker who can supply malformed page length data to the `_sg_parse_vpd_80()` function can trigger this overflow. The resulting corruption causes the process performing serial‑number queries to crash, leading to a denial of service. The flaw does not appear to provide a remote code execution path but can destabilize the storage‑management service.

Affected Systems

The vulnerability affects Red Hat Enterprise Linux 7, 8, 9, and 10 distributions, as they all include the vulnerable libstoragemgmt component. No specific package or version of libstoragemgmt is listed, so all current installations are potentially impacted.

Risk and Exploitability

This flaw carries a CVSS score of 5.5, indicating moderate severity. The EPSS score is unavailable, and the vulnerability is not yet listed in the CISA KEV catalog. Exploitation requires an attacker to control a local or virtual storage device that can deliver crafted SCSI VPD data to the target system. Because the attack surface is the local storage interface, the likely attack vector is local. If an attacker can connect a malicious storage medium or virtual disk, they can trigger the overflow and cause the storage‑management process to terminate. The published workaround suggests filtering or rejecting malformed VPD page 0x80 data before it reaches libstoragemgmt.

Generated by OpenCVE AI on September 21, 2026 at 21:52 UTC.

Remediation

Vendor Workaround

Avoid querying local disk serial numbers from untrusted or attacker-controlled storage devices or virtual storage backends. Systems should be configured to reject or sanitize malformed SCSI VPD page 0x80 data before it is processed by libstoragemgmt to prevent stack buffer overflows.


OpenCVE Recommended Actions

  • Apply the latest Red Hat Enterprise Linux security update that includes the libstoragemgmt fix.
  • Configure the system to reject or sanitize malformed SCSI VPD page 0x80 data before it is processed by libstoragemgmt, effectively avoiding the stack buffer overflow.
  • If a patch is unavailable, isolate untrusted storage devices by ensuring only trusted media can access the local disk interfaces, thereby preventing malformed VPD data from reaching the affected library.

Generated by OpenCVE AI on September 21, 2026 at 21:52 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Fri, 25 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 22 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 21 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in libstoragemgmt. An attacker with control over a local or virtual storage device could provide specially crafted SCSI (Small Computer System Interface) Vital Product Data (VPD) page 0x80 data. This malformed data, specifically an untrusted page length field, can lead to a stack buffer overflow in the `_sg_parse_vpd_80()` function during serial number parsing. Successful exploitation could result in a denial of service by crashing or destabilizing the process querying the serial number.
Title Libstoragemgmt: libstoragemgmt: denial of service via stack buffer overflow in scsi vpd page parsing
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-121
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-24T22:39:38.568Z

Reserved: 2026-09-17T21:25:57.912Z

Link: CVE-2026-93433

cve-icon Vulnrichment

Updated: 2026-09-24T22:39:34.170Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-21T21:17:17.847

Modified: 2026-09-24T23:19:21.733

Link: CVE-2026-93433

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-21T18:08:00Z

Links: CVE-2026-93433 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-29T13:21:34Z

Weaknesses
  • CWE-121

    Stack-based Buffer Overflow