CVE-2021-26957
Last modified
CVE-2021-26957 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.75% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xcb Project | Xcb | <= 2021-02-04 |
References
- https://rustsec.org/advisories/RUSTSEC-2021-0019.htmlExploit, Vendor Advisory
- https://rustsec.org/advisories/RUSTSEC-2021-0019.htmlExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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