CVE-2023-31893 Denial of service in n/a

High 7.5 Published Updated

Attackers can cause a denial of service on Vivo Play IPTV devices by exploiting DNS recursion vulnerabilities.

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-2023-31893?

CVE-2023-31893 is a high-severity denial of service vulnerability in n/a, published on 5 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Telefnica Brasil Vivo Play (IPTV) Firmware: 2023.04.04.01.06.15 is vulnerable to Denial of Service (DoS) via DNS Recursion.

Weakness: CWE-674

Which versions are affected by CVE-2023-31893?

It affects 1 product.

Products include Telefonica Brasil Vivo Play Firmware.

How do I fix CVE-2023-31893?

No fix has been published for CVE-2023-31893 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-31893 being exploited?

There is no known exploitation of CVE-2023-31893 in the wild and no public exploit code.

Sources

Also known as GHSA-p744-6f8q-9x8h.

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