Reported

January 30, 2020

Issued

October 1, 2020 (last modified: June 13, 2023)

Package

actix-codec (crates.io)

Type

Vulnerability

Categories

• memory-corruption

Aliases

• CVE-2020-35902
• GHSA-rqgx-hpg4-456r

References

• https://github.com/actix/actix-net/issues/91

CVSS Score

9.8 CRITICAL

CVSS Details

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

CVSS Vector

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

Patched

• >=0.3.0-beta.1

Description

Affected versions of this crate did not require the buffer wrapped in Framed to be pinned, but treated it as if it had a fixed location in memory. This may result in a use-after-free.

The flaw was corrected by making the affected functions accept Pin<&mut Self> instead of &mut self.

Advisory available under CC0-1.0 license.