RUSTSEC-2018-0001

An integer underflow could lead to panic

Reported

June 21, 2018

Issued

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

Package

untrusted (crates.io)

Type

Vulnerability

Keywords

#crash

Aliases

References

https://github.com/briansmith/untrusted/pull/20

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

Patched

>=0.6.2

Description

A mistake in error handling in untrusted before 0.6.2 could lead to an integer underflow and panic if a user of the crate didn't properly check for errors returned by untrusted.

Combination of these two programming errors (one in untrusted and another by user of this crate) could lead to a panic and maybe a denial of service of affected software.

The error in untrusted is fixed in release 0.6.2 released 2018-06-21. It's also advisable that users of untrusted check for their sources for cases where errors returned by untrusted are not handled correctly.

Advisory available under CC0-1.0 license.