CVE-2026-43996— OpenImageIO TGA调色板解码越界读漏洞
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一、 漏洞 CVE-2026-43996 基础信息
漏洞信息
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Vulnerability Title
OpenImageIO: Integer wraparound in bounds check of decode_pixel leads to out-of-bounds read in TGA paletted image decoder
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
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.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
跨界内存读
来源: 美国国家漏洞数据库 NVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| AcademySoftwareFoundation | OpenImageIO | < 3.0.18.0 | - |
二、漏洞 CVE-2026-43996 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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同批安全公告 · AcademySoftwareFoundation · 2026-05-14 · 共 8 条
| CVE-2026-43908 | 8.8 HIGH | OpenImageIO DPX 4:2:2解码器堆溢出漏洞 |
| CVE-2026-43909 | 8.8 HIGH | OpenImageIO DPX ABGR解码器整型溢出致越界读写漏洞 |
| CVE-2026-43907 | 8.3 HIGH | OpenImageIO DPX解码器堆溢出漏洞 |
| CVE-2026-43903 | OpenImageIO SGI RLE解码器堆缓冲区溢出漏洞 | |
| CVE-2026-43906 | OpenImageIO HEIF堆溢出漏洞 | |
| CVE-2026-43904 | OpenImageIO Softimage PIC RLE解码器堆缓冲区溢出漏洞 | |
| CVE-2026-43905 | OpenImageIO JPEG2000 (OpenJPH) 缓冲区分配有符号整数溢出漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-43996
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