Rust 与 C/C++ 内存安全漏洞差异分析
推荐指数 58.0 NO. 013 · 2026.06.16
发布2026/06/15Score75Comments75
为什么值得看
该文系统对比了 Rust 与 C/C++ 在 CVE 报告中内存安全漏洞的分布特征与根因差异。对正在做技术选型或维护遗留系统的工程师有直接参考价值。
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C/C++ 的内存安全 CVE 集中在缓冲区溢出和 UAF，而 Rust 的同类问题几乎全是 unsafe 代码块或 FFI 边界引入的。这意味着 Rust 的'安全承诺'在纯 Safe Rust 层面基本兑现，但实际工程里 unsafe 和 C 库互调用是躲不开的暗礁。
如果你团队正在把 C/C++ 模块往 Rust 迁移，重点审计 FFI 边界和 unsafe 封装层，而不是纠结语法转换。这篇文章的数据可以用来向管理层证明：迁移后核心代码漏洞会收敛到可控的边界区域，降低整体攻击面。
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意见分歧 68 条评论
核心争论：Rust 的内存安全承诺是否被 unsafe、标准库漏洞和编译器行为不一致所削弱
Unsafe is not necessary to trigger UB in case no_std is used. Nor if one of the soundness holes in the Rust programming language itself is encountered. Nor if there is UB in one of the libraries used as a dependency by the library you are using. Nor if there is UB in the Rust standard library. Which
> Nor if one of the soundness holes in the Rust programming language itself is encountered. imo one of those soundness holes is caused directly from trying to prevent UB - integer overflows. It is inconsistent in Rust what happens in that scenario depending on compiler flags, which basically just ma
Which definition of UB are you using regarding that? Behavior changing based on configuration does not seem like UB, at least if none of the configurations allow for UB.