Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.16, < 4.19.20 |
| Canonical | Ubuntu Linux | 18.04 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.htmlMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/106735Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16880Issue TrackingPatchThird 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 ListThird Party Advisory
- http://www.securityfocus.com/bid/106735Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16880Issue TrackingPatchThird 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
FAQ
What is CVE-2018-16880?
CVE-2018-16880 is a vulnerability with a CVSS score of 7.0 (HIGH). 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...
How severe is CVE-2018-16880?
CVE-2018-16880 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-16880?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Canonical Ubuntu Linux.