Vulnerability identifier: #VU11451
Vulnerability risk: High
CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-120
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Open vSwitch
Hardware solutions /
Firmware
Vendor: openvswitch.org
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists in lib/flow.c in ovs-vswitchd due to boundary error. A remote attacker can send specially crafted MPLS packets, as demonstrated by a long string in an ovs-appctl command, and execute arbitrary code.
Mitigation
Update to versions 2.3.3 or 2.4.1.
Vulnerable software versions
Open vSwitch: 2.2, 2.3, 2.4
External links
http://bugzilla.redhat.com/show_bug.cgi?id=1318553
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.