Description (CNA)
libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and prior contain a heap-buffer-overflow (write) vulnerability in the grid tile compositing, allowing an attacker to write 64 bytes of fully attacker-controlled data past the end of a chroma plane heap allocation by crafting a HEIF/AVIF file with a 1×4 grid of odd-height tiles. The overflow is triggered during normal image decoding with default build configuration. The written bytes are chroma (Cb/Cr) pixel values from the attacking tile, giving the attacker full control over the overflow content. This issue has been fixed in version 1.22.0.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| strukturag / libheif | affected < 1.22.0 |
CWE
CWE-787
References
- https://github.com/strukturag/libheif/security/advisories/GHSA-frfr-f3vg-2g6j
- https://github.com/strukturag/libheif/releases/tag/v1.22.0
ADP enrichment
No English description supplied.
No references supplied.
A flaw was found in libheif, a library for decoding and encoding HEIF and AVIF image files. This heap-buffer-overflow vulnerability allows a remote attacker to write arbitrary data beyond the intended memory boundary. By crafting a malicious HEIF/AVIF file with a specific grid tile configuration, an attacker could potentially achieve arbitrary code execution or cause a denial of service.