Vulnerability Details : 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 category: Memory CorruptionGain privilege
Products affected by CVE-2018-16880
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-16880
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-16880
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.9
|
MEDIUM | AV:L/AC:M/Au:N/C:C/I:C/A:C |
3.4
|
10.0
|
NIST | |
|
7.0
|
HIGH | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
NIST | |
|
5.9
|
MEDIUM | CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N |
1.6
|
4.2
|
Red Hat, Inc. | |
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
NIST |
CWE ids for CVE-2018-16880
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2018-16880
-
http://www.securityfocus.com/bid/106735
Linux Kernel 'drivers/vhost/net.c' Memory Corruption VulnerabilityThird Party Advisory;VDB Entry
-
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.html
[security-announce] openSUSE-SU-2019:1404-1: important: Security updateMailing List;Third Party Advisory
-
https://support.f5.com/csp/article/K03593314
Third Party Advisory
-
https://usn.ubuntu.com/3903-1/
USN-3903-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16880
1656472 – (CVE-2018-16880) CVE-2018-16880 kernel: Out of bounds write in get_rx_bufs() function in drivers/vhost/net.cIssue Tracking;Patch;Third Party Advisory
-
https://usn.ubuntu.com/3903-2/
USN-3903-2: Linux kernel (HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
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