Vulnerability Database

299,699

Total vulnerabilities in the database

CVE-2016-4558

The BPF subsystem in the Linux kernel before 4.5.5 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted application on (1) a system with more than 32 Gb of memory, related to the program reference count or (2) a 1 Tb system, related to the map reference count.

  • Published: May 23, 2016
  • Updated: Nov 9, 2025
  • CVE: CVE-2016-4558
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7
  • AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6.9
  • AV:L/AC:M/Au:N/C:C/I:C/A:C

No CWE or OWASP classifications available.

Software From Fixed in
canonical / ubuntu_linux 16.04 16.04.x
canonical / ubuntu_linux 14.04 14.04.x
linux / linux_kernel 4.4 4.4.11
linux / linux_kernel 4.5 4.5.5