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HIGH

CVE-2018-5391

CVSS v3

7.5

HIGH

Score EPSS

3.8 %

probabilité d’exploitation

CISA KEV

Non

exploitation connue

Exploitation

statut SSVC

Description

The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size.

Détails techniques

Publiée le
2018-09-06

Questions fréquentes

Qu’est-ce que CVE-2018-5391 ?

The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size.

CVE-2018-5391 est-elle activement exploitée ?

Aucune exploitation active de CVE-2018-5391 n’est confirmée. Le score EPSS est de 3.8 %, soit la probabilité estimée d’exploitation dans les 30 prochains jours.

Quel est le score CVSS de CVE-2018-5391 ?

CVE-2018-5391 a un score de base CVSS v3 de 7.5 (gravité HIGH).

CVE-2018-5391 touche-t-elle votre environnement ?

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