EUVD-2026-70449
GHSA-6q6f-22jw-g823
Severity by source
AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Local attack vector with user interaction required to process the image; high complexity due to stack layout uncertainty; no privileges needed to supply a crafted file.
Primary rating from Vendor (redhat).
CVSS VectorVendor: redhat
Lifecycle Timeline
2DescriptionCVE.org
A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.
AnalysisAI
Stack buffer overflow in gfs2-utils' savemeta function allows arbitrary code execution when a user processes a crafted GFS2 filesystem image. The vulnerability stems from using an attacker-controlled height field from on-disk inode metadata as a loop bound without validation, overwriting stack memory beyond the buffer's allocated region. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim user to actively run a gfs2-utils utility (specifically invoking the savemeta code path, e.g., gfs2_edit or a metadata inspection command) against a crafted GFS2 filesystem image controlled by the attacker. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.0 (AV:L/AC:H/PR:N/UI:R) vector accurately characterizes this as a constrained local-access vulnerability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the gfs2-utils package update provided by Red Hat via errata for RHEL 7, 8, and 9 - monitor https://access.redhat.com/security/cve/CVE-2026-71221 and the associated errata channels for the exact fixed package version, which was not specified in available data at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all systems running gfs2-utils and identify users authorized to process GFS2 filesystem images; restrict execution permissions to only essential trusted administrators. …
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View allVendor StatusVendor
SUSE
Severity: Important| Product | Status |
|---|---|
| SUSE Linux Enterprise High Availability Extension 15 SP7 | Affected |
| SUSE Linux Enterprise High Availability Extension 16.0 | Affected |
| SUSE Linux Enterprise High Availability Extension 16.1 | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | Affected |
| openSUSE Leap 16.0 | Affected |
| SUSE Linux Enterprise High Availability Extension 12 SP5 | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP4 | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP5 | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | Affected |
| SUSE Linux Enterprise High Availability Extension 12 | Affected |
| SUSE Linux Enterprise High Availability Extension 12 SP1 | Affected |
| SUSE Linux Enterprise High Availability Extension 12 SP2 | Affected |
| SUSE Linux Enterprise High Availability Extension 12 SP3 | Affected |
| SUSE Linux Enterprise High Availability Extension 12 SP4 | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP6 | Affected |
| openSUSE Leap 15.4 | Affected |
| openSUSE Leap 15.5 | Affected |
| openSUSE Leap 15.6 | Affected |
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