Reported

January 2, 2021

Issued

January 20, 2021 (last modified: June 13, 2023)

Package

bra (crates.io)

Type

Vulnerability

Categories

• memory-exposure

Aliases

• CVE-2021-25905
• GHSA-j8qq-58cr-8cc7

References

• https://github.com/Enet4/bra-rs/issues/1

CVSS Score

9.1 CRITICAL

CVSS Details

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

CVSS Vector

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

Patched

• >=0.1.1

Description

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

This is unsound, because it allows safe Rust code to exhibit an undefined behavior (read from uninitialized memory).

The flaw was corrected in version 0.1.1 by zero-initializing a newly allocated buffer before handing it to a user-provided Read implementation.

Advisory available under CC0-1.0 license.