NIXPKGS-2026-1567

GitHub issue published 1 month, 1 week ago

Permalink CVE-2026-43996

5.5 MEDIUM

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): None (N)
User Interaction (UI): Required (R)
Scope (S): Unchanged (U)
Confidentiality (C): None (N)
Integrity (I): None (N)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): Required (R)
Modified Confidentiality (MC): None (N)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): None (N)
Modified Availability (MA): High (H)

updated 1 month, 1 week ago by @LeSuisse Activity log

Created suggestion 1 month, 1 week ago
@LeSuisse ignored
4 packages
- colmap
- colmapWithCuda
- python313Packages.openimageio
- python314Packages.openimageio
1 month, 1 week ago
@LeSuisse accepted 1 month, 1 week ago
@LeSuisse published on GitHub 1 month, 1 week ago

OpenImageIO: Integer wraparound in bounds check of decode_pixel leads to out-of-bounds read in TGA paletted image decoder

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, the bounds check in TGAInput::decode_pixel computes k + palbytespp as unsigned 32-bit arithmetic. When k = 0xFFFFFFFC and palbytespp = 4, the addition wraps to 0, which compares less than palette_alloc_size and passes the check. The subsequent palette access uses the unwrapped k (0xFFFFFFFC) as the index, reading ~4 GB past the start of the palette buffer — SEGV. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.