Homepage

Resource Exhaustion The advisory has been revoked - it doesn't affect any version of package kernel-headers  (opens in a new tab)

Threat Intelligence

EPSS
32.45% (99th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL7-KERNELHEADERS-4829868
  • published26 Jul 2021
  • disclosed14 Aug 2018
Report a new vulnerability Found a mistake?

Introduced: 14 Aug 2018

CVE-2018-5391  (opens in a new tab)
CWE-400  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:7.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.

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.

References