CVE-2017-9264 Memory corruption in n/a

Critical 9.8 Published Updated

Remote attackers can cause a denial of service in Open vSwitch by sending malformed TCP, UDP, or IPv6 packets that trigger a buffer over-read.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2017-9264?

CVE-2017-9264 is a critical memory corruption vulnerability in n/a, published on 29 May 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In lib/conntrack.c in the firewall implementation in Open vSwitch (OvS) 2.6.1, there is a buffer over-read while parsing malformed TCP, UDP, and IPv6 packets in the functions `extract_l3_ipv6`, `extract_l4_tcp`, and `extract_l4_udp` that can be triggered remotely.

Weakness: CWE-125

Which versions are affected by CVE-2017-9264?

It affects 1 product.

Products include Openvswitch Openvswitch.

How do I fix CVE-2017-9264?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-9264 being exploited?

There is no known exploitation of CVE-2017-9264 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2017-9264, GHSA-r4pw-w7qg-248f.

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