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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| emersion | libdisplay-info | 0.4.0 | — |
References
- https://hackmd.io/@haindpwn/libdisplay-info-displayid-datablock-overrun-oob-read third-party-advisory
- https://gitlab.freedesktop.org/emersion/libdisplay-info/-/blob/0.4.0/displayid2.c#L84-L143 technical-description
- https://gitlab.freedesktop.org/emersion/libdisplay-info product
- VulnCheck Advisory: libdisplay-info 0.4.0 Heap Out-of-Bounds Read via DisplayID v2 Parser third-party-advisory