CVE-2016-4558

 

Published at: - 23-05-2016 12:59

Last modified: - 26-10-2022 01:44

Total changes: - 3

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5
• [oss-security] 20160506 CVE Requests: Linux: BPF flaws (one use-after-free / local root privilege escalation)-
• https://bugzilla.redhat.com/show_bug.cgi?id=1334303
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e
• USN-3007-1-Third Party Advisory
• USN-3005-1-Third Party Advisory
• USN-3006-1-Third Party Advisory

 

Keywords

NVD

 

CVE-2016-4558

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures