CVE-2026-64115
Description
A flaw was found in the vsock/vmci component of the Linux kernel. A remote attacker could exploit a Use-After-Free (UAF) vulnerability when a peer resets a connection during the handshake process. This occurs because the system incorrectly handles reset packets, leading to a pending socket being left in an invalid state. Exploiting this flaw could cause a system crash, resulting in a Denial of Service (DoS).
Détails du score du système commun d'évaluation des vulnérabilités (CVSS)
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
Les mesures et les scores CVSS suivants sont préliminaires et sujets à révision.
Répartition des scores CVSS v3
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Score de base | 7 | N/A | 8.8 |
| Vecteur d'attaque | Local | N/A | Local |
| Complexité de l'attaque | High | N/A | Low |
| Privilèges requis | Low | N/A | Low |
| Interaction avec l'utilisateur | None | N/A | None |
| Champ d'application | Unchanged | N/A | Changed |
| Confidentialité | High | N/A | High |
| Impact sur l'intégrité | High | N/A | High |
| Impact sur la disponibilité | High | N/A | High |
Vecteur
Red Hat: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Comprendre la Défaillance (CWE)
Integrity
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
Write operations could cause memory corruption. In some cases, an adversary can modify control data such as return addresses in order to execute unexpected code.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
Attempting to access out-of-range, invalid, or unauthorized memory could cause the product to crash.
Other
Technical Impact: Unexpected State
Subsequent write operations can produce undefined or unexpected results.
Questions fréquemment posées
Not sure what something means? Check out our Security Glossary.
Vous souhaitez recevoir des notifications d'errata ? Signez ici.
