CVE-20XX-?
agent?

CVE-2021-20221

6.0 MEDIUM 0.3% exploit odds Fix listed

What it is

An out-of-bounds heap buffer access issue was found in the ARM Generic Interrupt Controller emulator of QEMU up to and including qemu 4.2.0on aarch64 platform. The issue occurs because while writing an interrupt ID to the controller memory area, it is not masked to be 4 bits wide. It may lead to the said issue while updating controller state fields and their subsequent processing. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.

At a glance

Exploitability
Can be exploited locally on the machine with an admin-level account. High risk of service disruption.
Exploit odds
0.3% chance of exploitation in the next 30 days (EPSS).
Fix
A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

  1. PublishedDisclosed publicly on CVE.org and NVD
  2. Last updatedMost recent change to the record

Why it ranks here

Details

Published
Last modified
Exploit probability
0.3% · EPSS, next 30 days
Weakness
CWE-125 · Out-of-bounds read
Record status
Modified

Affected

Attack profile CVSS 3.1 · 6.0

Attack vector
Local
Complexity
Low
Privileges needed
High
User interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
Raw vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-20221.md and follow it. Check whether this project is affected by CVE-2021-20221. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

· More options · Status badge

Meme: I wake up, CVE-2021-20221
Download Square Reddit

Fix and advisories

References

NVD record · CVE.org record