Buffer overflow in Linux Kernel
CVE-2018-16880
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (44.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Linux Kernel
- The Linux Foundation Kernel — versions from v4.16 and newer
- Canonical Ubuntu Linux — versions 18.04, 18.10
Weakness classification (CWE)
References
- usn.ubuntu.com/3903-2/ (vendor-advisory, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/106735 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3903-1/ (vendor-advisory, Third Party Advisory)
- support.f5.com/csp/article/K03593314 (Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-16880?
- CVE-2018-16880 is a high-severity vulnerability in Linux Kernel, classified under Out-of-bounds Write. CVSS score: 7.0/10. Published 2019-01-29.
- How severe is CVE-2018-16880?
- High severity. CVSS v3 base score is 7.0 out of 10.