CVE-2018-16880
High
Description
A flaw was found in the Linux kernel's handle_rx() function in the [vhost_net] driver. A malicious virtual guest, under specific conditions, can trigger an out-of-bounds write in a kmalloc-8 slab on a virtual host which may lead to a kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. Versions from v4.16 and newer are vulnerable.
SeverityHigh
CVSS7.0
Exploit probability—
Product
Linux Kernel
PublishedJan 29, 2019
First seenJan 29, 2019
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- linux linux_kernel4.19.20, 4.20.7 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.16 ≤ v < 4.19.20, 4.20 ≤ v < 4.20.7 | 4.19.20, 4.20.7 |
| canonical ubuntu_linux | 18.04, 18.10 | — |
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