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RUSTSEC-2026-0172: Possible use after free when deserializing a SQLite database via `SqliteConnection::deserialize_readonly_database`

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评估

难度
2/5
预计耗时
1-3 小时
新手友好度
45/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
冷清
技术栈
rust, sqlite

调研方向

该 issue 没有指定任何图节点文件或测试。首先检查仓库的依赖声明中是否使用 Diesel 2.3.9,以及是否使用了 SQLite 功能;完成标准是将 Diesel 更新到 2.3.10 或更高版本,并运行相关的现有检查。

由索引模型根据 Issue 内容生成。

描述

Possible use after free when deserializing a SQLite database via SqliteConnection::deserialize_readonly_database

Details
Status unsound
Package diesel
Version 2.3.9
URL https://github.com/diesel-rs/diesel/commit/1bc2ea46d9840e8d9af844239d3c84f37fe7d84b
Date 2026-06-05

Diesel allows loading a SQLite database from a byte buffer, represented as &[u8], at runtime via the SqliteConnection::deserialize_readonly_database function. In previous versions of Diesel, this buffer was passed directly to libsqlite3. Since libsqlite3 requires the buffer to remain alive for as long as the database connection is open and Diesel did not ensure this as part of its safe API, callers of SqliteConnection::deserialize_readonly_database could drop the buffer prematurely. This prematurely drop caused libsqlite3 to operate on freed memory.

This vulnerability affects users of SqliteConnection::deserialize_readonly_database who drop the buffer passed to the function before they drop the database connection.

Mitigation

The preferred mitigation to the outlined problem is to update to Diesel version 2.3.10 or newer, which includes a fix for the problem. Alternatively users need to take to keep the buffer alive until the connection is dropped.

Resolution

Diesel now stores a copy of the buffer inside of the SqliteConnection object itself to keep it alive as long as the underlying libsqlite3 connection exists.

See advisory page for additional details.

主要语言
Rust
星标
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派生
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