soroban-sdk has overflow in Bytes::slice, Vec::slice, GenRange::gen_range for u64

soroban-sdk is a Rust SDK for Soroban contracts. Arithmetic overflow can be triggered in the `Bytes::slice`, `Vec::slice`, and `Prng::gen_range` (for `u64`) methods in the `soroban-sdk` in versions up to and including `25.0.1`, `23.5.1`, and `25.0.2`. Contracts that pass user-controlled or computed range bounds to `Bytes::slice`, `Vec::slice`, or `Prng::gen_range` may silently operate on incorrect data ranges or generate random numbers from an unintended range, potentially resulting in corrupted contract state. Note that the best practice when using the `soroban-sdk` and building Soroban contracts is to always enable `overflow-checks = true`. The `stellar contract init` tool that prepares the boiler plate for a Soroban contract, as well as all examples and docs, encourage the use of configuring `overflow-checks = true` on `release` profiles so that these arithmetic operations fail rather than silently wrap. Contracts are only impacted if they use `overflow-checks = false` either explicitly or implicitly. It is anticipated the majority of contracts could not be impacted because the best practice encouraged by tooling is to enable `overflow-checks`. The fix available in `25.0.1`, `23.5.1`, and `25.0.2` replaces bare arithmetic with `checked_add` / `checked_sub`, ensuring overflow traps regardless of the `overflow-checks` profile setting. As a workaround, contract workspaces can be configured with a profile available in the GitHub Securtity Advisory to enable overflow checks on the arithmetic operations. This is the best practice when developing Soroban contracts, and the default if using the contract boilerplate generated using `stellar contract init`. Alternatively, contracts can validate range bounds before passing them to `slice` or `gen_range` to ensure the conversions cannot overflow.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

整数溢出或超界折返

rs-soroban-sdk 输入验证错误漏洞

rs-soroban-sdk是Stellar开源的一个Rust开发者工具包。 rs-soroban-sdk 25.0.1及之前版本、23.5.1及之前版本和25.0.2及之前版本存在输入验证错误漏洞，该漏洞源于Bytes::slice、Vec::slice和Prng::gen_range方法存在算术溢出，可能导致在错误的数据范围内操作或生成非预期范围的随机数，从而破坏合约状态。

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