CVE-2024-7884— Rust Canister Development Kit 安全漏洞
一分钟漏洞结论
影响对象
Internet Computer ic-cdk
利用判断
存在公开或 AI PoC，应优先验证
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Rust Canister Development Kit是DFINITY开源的一个用于 Internet 计算机的 Rust 开发工具包。 Rust Canister Development Kit存在安全漏洞，该漏洞源于在解析 Future 之前并非所有引用都被删除，从而导致内存泄漏。
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一、 漏洞 CVE-2024-7884 基础信息
漏洞信息
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Vulnerability Title
Memory leak when calling a canister method via `ic_cdk::call`
来源: CVE Program / CVE List V5
Vulnerability Description
When a canister method is called via ic_cdk::call* , a new Future CallFuture is created and can be awaited by the caller to get the execution result. Internally, the state of the Future is tracked and stored in a struct called CallFutureState. A bug in the polling implementation of the CallFuture allows multiple references to be held for this internal state and not all references were dropped before the Future is resolved. Since we have unaccounted references held, a copy of the internal state ended up being persisted in the canister's heap and thus causing a memory leak.
Impact Canisters built in Rust with ic_cdk and ic_cdk_timers are affected. If these canisters call a canister method, use timers or heartbeat, they will likely leak a small amount of memory on every such operation. In the worst case, this could lead to heap memory exhaustion triggered by an attacker. Motoko based canisters are not affected by the bug.
PatchesThe patch has been backported to all minor versions between >= 0.8.0, <= 0.15.0. The patched versions available are 0.8.2, 0.9.3, 0.10.1, 0.11.6, 0.12.2, 0.13.5, 0.14.1, 0.15.1 and their previous versions have been yanked. WorkaroundsThere are no known workarounds at the moment. Developers are recommended to upgrade their canister as soon as possible to the latest available patched version of ic_cdk to avoid running out of Wasm heap memory.
Upgrading the canisters (without updating `ic_cdk`) also frees the leaked memory but it's only a temporary solution.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
来源: CVE Program / CVE List V5
Vulnerability Title
Rust Canister Development Kit 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Rust Canister Development Kit是DFINITY开源的一个用于 Internet 计算机的 Rust 开发工具包。 Rust Canister Development Kit存在安全漏洞，该漏洞源于在解析 Future 之前并非所有引用都被删除，从而导致内存泄漏。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Internet Computer | ic-cdk | 0.8.0 ~ 0.8.2 | - |
|
二、漏洞 CVE-2024-7884 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
Qwen3.6-35B-A3B
· 4938 chars
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三、漏洞 CVE-2024-7884 的情报信息
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CVE-2024-7884 其他参考 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2024-7884
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