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CVE-2021-26958

Published: 9 February 2021

An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because transmutation to the wrong type can happen after xcb::base::cast_event uses std::mem::transmute to return a reference to an arbitrary type.

Priority

Medium

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package Release Status
rust-xcb
Launchpad, Ubuntu, Debian
hirsute Ignored
(end of life)
bionic Does not exist

focal Does not exist

groovy Ignored
(end of life)
trusty Does not exist

upstream Needs triage

xenial Does not exist

kinetic Ignored
(end of life, was needs-triage)
jammy Needs triage

impish Ignored
(end of life)
mantic Needs triage

lunar Ignored
(end of life, was needs-triage)

Severity score breakdown

Parameter Value
Base score 8.8
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H