CVE-2021-26955
CRITICALxcb < 2021-02-04 - Unchecked Return Value in GetAtomNameReply
Title source: llmDescription
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.
References (1)
Core 1
Core References
Exploit, Vendor Advisory x_refsource_misc
https://rustsec.org/advisories/RUSTSEC-2021-0019.html
Scores
CVSS v3
9.8
EPSS
0.0173
EPSS Percentile
74.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-252
Status
published
Products (2)
crates.io/xcb
0 - 1.0.0crates.io
xcb_project/xcb
< 2021-02-04
Published
Feb 09, 2021
Tracked Since
Feb 18, 2026