Vulnerabilities

RUSTSEC-2024-0019

Tokens for named pipes may be delivered after deregistration

Details
Package	mio
Version	0.7.14
URL	GHSA-r8w9-5wcg-vfj7
Date	2024-03-04
Patched versions	>=0.8.11
Unaffected versions	<0.7.2

Impact

When using named pipes on Windows, mio will under some circumstances return invalid tokens that correspond to named pipes that have already been deregistered from the mio registry. The impact of this vulnerability depends on how mio is used. For some applications, invalid tokens may be ignored or cause a warning or a crash. On the other hand, for applications that store pointers in the tokens, this vulnerability may result in a use-after-free.

For users of Tokio, this vulnerability is serious and can result in a use-after-free in Tokio.

The vulnerability is Windows-specific, and can only happen if you are using named pipes. Other IO resources are not affected.

Affected versions

This vulnerability has been fixed in mio v0.8.11.

All versions of mio between v0.7.2 and v0.8.10 are vulnerable.

Tokio is vulnerable when you are using a vulnerable version of mio AND you are using at least Tokio v1.30.0. Versions of Tokio prior to v1.30.0 will ignore invalid tokens, so they are not vulnerable.

Workarounds

Vulnerable libraries that use mio can work around this issue by detecting and ignoring invalid tokens.

Technical details

When an IO resource registered with mio has a readiness event, mio delivers that readiness event to the user using a user-specified token. Mio guarantees that when an IO resource is deregistered, then it will never return the token for that IO resource again. However, for named pipes on windows, mio may sometimes deliver the token for a named pipe even though the named pipe has been previously deregistered.

This vulnerability was originally reported in the Tokio issue tracker: tokio-rs/tokio#6369
This vulnerability was fixed in: tokio-rs/mio#1760

Thank you to @rofoun and @radekvit for discovering and reporting this issue.

Warnings

RUSTSEC-2024-0375

atty is unmaintained

Details
Status	unmaintained
Package	atty
Version	0.2.14
URL	softprops/atty#57
Date	2024-09-25

The maintainer of atty has published an official notice that the crate is no longer
under development, and that users should instead rely on the functionality in the standard library's IsTerminal trait.

Alternative(s)

• std::io::IsTerminal - Stable since Rust 1.70.0 and the recommended replacement per the atty maintainer.
• is-terminal - Standalone crate supporting Rust older than 1.70.0

RUSTSEC-2024-0370

proc-macro-error is unmaintained

Details
Status	unmaintained
Package	proc-macro-error
Version	1.0.4
URL	https://gitlab.com/CreepySkeleton/proc-macro-error/-/issues/20
Date	2024-09-01

proc-macro-error's maintainer seems to be unreachable, with no commits for 2 years, no releases pushed for 4 years, and no activity on the GitLab repo or response to email.

proc-macro-error also depends on syn 1.x, which may be bringing duplicate dependencies into dependant build trees.

Possible Alternative(s)

• manyhow
• proc-macro-error2
• proc-macro2-diagnostics

RUSTSEC-2023-0081

safemem is unmaintained

Details
Status	unmaintained
Package	safemem
Version	0.3.3
URL	https://github.com/abonander/safemem
Date	2023-02-14

The latest crates.io release was in 2019. The repository has been archived by the author.

Migration

• safemem::copy_over(slice, src_idx, dest_idx, len); can be replaced with slice.copy_within(src_idx..src_idx+len, dest_idx); as of rust 1.37.0.

• safemem::write_bytes(slice, byte); can be replaced with slice.fill(byte); as of rust 1.50.0

• safemem::prepend(slice, vec); can be replaced with

  let old_len = vec.len();
  vec.extend_from_slice(slice);
  vec.rotate_left(old_len);

  as of rust 1.26.0

RUSTSEC-2023-0049

tui is unmaintained; use ratatui instead

Details
Status	unmaintained
Package	tui
Version	0.16.0
URL	fdehau/tui-rs#654
Date	2023-08-07

The tui crate is no longer maintained.

Consider using the ratatui crate instead.

RUSTSEC-2024-0320

yaml-rust is unmaintained.

Details
Status	unmaintained
Package	yaml-rust
Version	0.4.5
URL	rustsec/advisory-db#1921
Date	2024-03-20

The maintainer seems unreachable.

Many issues and pull requests have been submitted over the years
without any response.

Alternatives

Consider switching to the actively maintained yaml-rust2 fork of the original project:

• yaml-rust2
• yaml-rust2 @ crates.io)

Crate futures-util is yanked

No extra details provided.

Crate wasm-bindgen is yanked

No extra details provided.