CVE-2018-16880
Last modified
CVE-2018-16880 is a high-severity vulnerability rated 7/10 on the CVSS scale. 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. EPSS estimates a 0.56% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.16, < 4.19.20 |
| Linux | Linux Kernel | >= 4.20, < 4.20.7 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 18.10 |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.htmlMailing List, Third Party Advisory
- http://www.securityfocus.com/bid/106735Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16880Issue Tracking, Patch, Third Party Advisory
- https://support.f5.com/csp/article/K03593314Third Party Advisory
- https://usn.ubuntu.com/3903-1/Third Party Advisory
- https://usn.ubuntu.com/3903-2/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.htmlMailing List, Third Party Advisory
- http://www.securityfocus.com/bid/106735Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16880Issue Tracking, Patch, Third Party Advisory
- https://support.f5.com/csp/article/K03593314Third Party Advisory
- https://usn.ubuntu.com/3903-1/Third Party Advisory
- https://usn.ubuntu.com/3903-2/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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