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GHSA-p46c-w9m3-7qr2

Use of Uninitialized Resource in flumedb.

Source: GitHub Advisory Database (reviewed) Critical CVE-2021-45684

Packages

EcosystemPackageAffectedFixed in
crates.io flumedb < 0.1.6 0.1.6

Details

As written in the advisory (Markdown source, shown as plain text).

Affected versions of this crate passes an uninitialized buffer to a user-provided Read implementation. There are two of such cases (go_offset_log::read_entry() & offset_log::read_entry()). Arbitrary Read implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.

References

External links from the advisory. They lead to third-party sites.