CVEvulnerability

CVE-2021-26955

9.8 CRITICAL Published 2021-02-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-02-09
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-252

Description

An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because xcb::xproto::GetAtomNameReply::name() calls std::str::from_utf8_unchecked() on unvalidated bytes from an X server.

Affected configurations

• xcb project xcb (<= 2021-02-04)

Related

Weakness · CWE (1)

  • CWE-252 Unchecked Return Value weakness

References