// For flags

CVE-2022-3344

Ubuntu Security Notice USN-5950-1

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

< 1%
*EPSS

Affected Versions

1
*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A flaw was found in the KVM's AMD nested virtualization (SVM). A malicious L1 guest could purposely fail to intercept the shutdown of a cooperative nested guest (L2), possibly leading to a page fault and kernel panic in the host (L0).

Se ha encontrado un fallo en la virtualización anidada AMD (SVM) de KVM. Un huésped L1 malicioso podría fallar a propósito para interceptar el apagado de un huésped anidado cooperativo (L2), posiblemente conllevando a una falla de página y pánico del kernel en el host (L0)

It was discovered that the Upper Level Protocol subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel did not properly handle VLAN headers in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-09-27 CVE Reserved
  • 2022-10-24 CVE Published
  • 2024-08-03 CVE Updated
  • 2025-03-18 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-440: Expected Behavior Violation
CAPEC
Affected Vendors, Products, and Versions (1)