CVE-2018-16880

HIGH
7
CVSS Score
Published: January 29, 2019 at 04:00 PM UTC
Updated: June 17, 2026 at 01:44 AM UTC
2 products affected across 2 vendorsLinux KernelUbuntu Linux

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Severity
HIGH7
Exploit prediction
EPSS 0.6%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≥ 4.164.16 ≤ v < 4.19.204.20 ≤ v < 4.20.7
Affected range stops below 4.19.20, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.20.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.html
VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/106735
x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16880
x_refsource_CONFIRMThird Party Advisory
https://support.f5.com/csp/article/K03593314
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3903-1/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/3903-2/

CVSS

Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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