| 标题 | quickjs-ng quickjs v0.11.0 Heap-based Buffer Overflow |
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| 描述 | A heap-buffer-overflow (out-of-bounds access) can be triggered in QuickJS-NG via side effects during js_typed_array_constructor.
Root cause: When constructing a TypedArray(via Reflect.construct), js_typed_array_constructor calls js_create_from_ctor(ctx, new_target, classid), which performs a property lookup for prototype (JS_GetProperty(ctx, ctor, JS_ATOM_prototype)). A user-defined getter on new_target.prototype can run arbitrary JS at that point and resize or detach the input ArrayBuffer mid-execution. After returning, the constructor continues and typed_array_init is invoked with stale/outdated buffer assumptions, leading to out-of-bounds access on the resized/detached buffer.
Affected version: quickjs-ng/quickjs commit 537d004cd22b86373c262528c7e8076eaf76996d (tested on 2026-01-05)
Reproduction and ASAN crash details are publicly documented in: https://github.com/quickjs-ng/quickjs/issues/1296 |
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| 来源 | ⚠️ https://github.com/quickjs-ng/quickjs/issues/1296 |
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| 用户 | mcsky23 (UID 94179) |
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| 提交 | 2026-01-05 16時11分 (9 月前) |
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| 管理 | 2026-01-09 19時24分 (4 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 340355 [quickjs-ng quickjs 直到 0.11.0 quickjs.c js_typed_array_constructor 内存损坏] |
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| 积分 | 20 |
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