CVE-2021-26957
9.8
CRITICAL
CVSS 3.1
EPSS 1.8%
Description
An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because there is an out-of-bounds read in xcb::xproto::change_property(), as demonstrated by a format=32 T=u8 situation where out-of-bounds bytes are sent to an X server.
How to fix CVE-2021-26957
To remediate CVE-2021-26957, upgrade the affected package to a fixed version below.
- Debian/rust-xcb—upgrade to 1.1.1-1 or later
Is CVE-2021-26957 being exploited?
Low — EPSS is 1.8%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.1.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |