HistoryEdit

RUSTSEC-2020-0048

Use-after-free in BodyStream due to lack of pinning

Issued
Package
actix-http (crates.io)
Type
Vulnerability
Categories
Aliases
Details
https://github.com/actix/actix-web/issues/1321
CVSS Score
7.5 HIGH
CVSS Details
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Patched
  • >=2.0.0-alpha.1

Description

Affected versions of this crate did not require the buffer wrapped in BodyStream 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 trait MessageBody require Unpin and making poll_next() function accept Pin<&mut Self> instead of &mut self.