CVE-2016-4558
High
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.
SeverityHigh
CVSS7.0
Exploit probability—
Product
Linux Kernel
PublishedMay 23, 2016
First seenMay 23, 2016
How to fix
Update
- linux linux_kernel4.4.11, 4.5.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.4 ≤ v < 4.4.11, 4.5 ≤ v < 4.5.5 | 4.4.11, 4.5.5 |
| canonical ubuntu_linux | 14.04, 16.04 | — |
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