CVE-2026-112272
libdisplay-info 0.4.0 Heap Out-of-Bounds Read via DisplayID v2 Parser
- State
- Published
- Severity
- 6.8 Medium
- Published
- Oct 19, 2026
- Updated
- Oct 19, 2026
- Reserved
- Oct 19, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
libdisplay-infoemersion |
|
References
- https://hackmd.io/@haindpwn/libdisplay-info-displayid-datablock-overrun-oob-readthird-party-advisory
- https://gitlab.freedesktop.org/emersion/libdisplay-info/-/blob/0.4.0/displayid2.c#L84-L143technical-description
- https://gitlab.freedesktop.org/emersion/libdisplay-infoproduct
- VulnCheck Advisory: libdisplay-info 0.4.0 Heap Out-of-Bounds Read via DisplayID v2 Parserthird-party-advisory
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