libdisplay-info 0.4.0 Heap Out-of-Bounds Read via DisplayID v2 Parser
Published Oct 19, 2026 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
libdisplay-info 0.4.0 Heap Out-of-Bounds Read via DisplayID v2 Parser
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
Libdisplay-info 0.4.0 contains a heap out-of-bounds read vulnerability in the DisplayID v2 section parser in displayid2.c that allows attackers to read past the EDID buffer via oversized data block lengths. Attackers can supply a crafted EDID from a malicious monitor, KVM, capture device, or file to over-advance the parse cursor and crash applications.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- hackmd.io ↗
- gitlab.freedesktop.org ↗
- gitlab.freedesktop.org ↗
- VulnCheck Advisory: libdisplay-info 0.4.0 Heap Out-of-Bounds Read via DisplayID v2 Parser ↗
Record history
Published Oct 19, 2026 · Last refreshed Nov 3, 2026