CVE-2016-2074

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-07-03 · updated 2026-06-17
Weakness: CWE-119

Description

Buffer overflow in lib/flow.c in ovs-vswitchd in Open vSwitch 2.2.x and 2.3.x before 2.3.3 and 2.4.x before 2.4.1 allows remote attackers to execute arbitrary code via crafted MPLS packets, as demonstrated by a long string in an ovs-appctl command.

Affected products

Openvswitch: 2.2.0, 2.3.0, 2.3.1, 2.3.2, 2.4.0
Openshift: 3.1

References

http://openvswitch.org/pipermail/announce/2016-March/000082.html
http://openvswitch.org/pipermail/announce/2016-March/000083.html
http://rhn.redhat.com/errata/RHSA-2016-0523.html
http://rhn.redhat.com/errata/RHSA-2016-0524.html
http://rhn.redhat.com/errata/RHSA-2016-0537.html
http://www.debian.org/security/2016/dsa-3533
http://www.securityfocus.com/bid/85700
https://access.redhat.com/errata/RHSA-2016:0615
https://bugzilla.redhat.com/show_bug.cgi?id=1318553
https://security-tracker.debian.org/tracker/CVE-2016-2074
https://security.gentoo.org/glsa/201701-07
https://support.citrix.com/article/CTX232655

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