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GHSA-ggxf-9f6j-w742
No affected components available
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.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.
Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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