Red Hat update for openvswitch

1) Buffer overflow

EUVDB-ID: #VU11451

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-2074

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

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

Install updates from vendor's website.

Vulnerable software versions

Red Hat OpenStack: 7.0

CPE2.3

• cpe:2.3:a:red_hat:red_hat_openstack:7.0:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2016:0537

Q & A

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.