Vulnerability CVE-2018-16880


Published: 2019-01-29

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.

Type:

CWE-787

CVSS2 => (AV:L/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.9/10
10/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linux -> Linux kernel 
Canonical -> Ubuntu linux 

 References:
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.html
http://www.securityfocus.com/bid/106735
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16880
https://support.f5.com/csp/article/K03593314
https://usn.ubuntu.com/3903-1/
https://usn.ubuntu.com/3903-2/

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