CVE-2018-10731 Memory corruption in n/a

Critical 9.0 Published 17 May 2018 Updated 5 Aug 2024

Buffer overflow in Phoenix Contact managed switches allows attackers to execute arbitrary code or cause denial of service via large cookies.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-10731?

CVE-2018-10731 is a critical memory corruption vulnerability in n/a, published on 17 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

All Phoenix Contact managed FL SWITCH 3xxx, 4xxx, 48xx products running firmware version 1.0 to 1.33 are prone to buffer overflows when handling very large cookies (a different vulnerability than CVE-2018-10728).

Weakness: CWE-119

Which versions are affected by CVE-2018-10731?

It affects 29 products.

Products include Phoenixcontact Fl Switch 3004t-Fx Firmware, Phoenixcontact Fl Switch 3004t-Fx St Firmware, Phoenixcontact Fl Switch 3005 Firmware, Phoenixcontact Fl Switch 3005t Firmware, Phoenixcontact Fl Switch 3006t-2fx Firmware, Phoenixcontact Fl Switch 3006t-2fx Sm Firmware and 23 more.

How do I fix CVE-2018-10731?

No fix has been published for CVE-2018-10731 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2018-10731 being exploited?

There is no known exploitation of CVE-2018-10731 in the wild and no public exploit code.

Sources

Also known as GHSA-fwh4-47pw-jmg5.