Reported

December 31, 2020

Issued

August 21, 2021 (last modified: June 13, 2023)

Package

buffoon (crates.io)

Type

INFO Unsound

Categories

• memory-exposure

Aliases

• CVE-2020-36512
• GHSA-hmx9-jm3v-33hv
• GHSA-v938-qcc9-rwv8

References

• https://github.com/carllerche/buffoon/issues/2

Patched

no patched versions

Description

Affected versions of this crate passes an uninitialized buffer to a user-provided Read implementation.

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.

Advisory available under CC0-1.0 license.