CVE-2026-92449
2026-10-20
15h17 +00:00
15h17 +00:00
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掌握特定 CVE 的任何變更。
CVE 描述
`_gx_binres_pixelmap_table_load()` in the GUIX binary resource (theme) loader indexes the pixelmap table with a value read verbatim from the resource file and never bounds it against the table size. A crafted theme drives a write of up to roughly 256 KB past the end of the table.
The overflowed buffer is allocated by GUIX itself, through `_gx_system_memory_allocator`, rather than supplied by the caller, so the loader corrupts its own arena. The public API `gx_binres_theme_load()` takes no size parameter, so no amount of caller diligence prevents this.
Reproduces in the shipped default configuration; `GX_BINARY_RESOURCE_SUPPORT` is enabled by default.
CVE 資訊
相關弱點
| 弱點名稱 | 來源 | |
|---|---|---|
| Improper Validation of Array Index The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array. |
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| Use of Uninitialized Variable The code uses a variable that has not been initialized, leading to unpredictable or unintended results. |
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| Out-of-bounds Write The product writes data past the end, or before the beginning, of the intended buffer. |
