CVE-2020-14034 Memory corruption in n/a

Critical 9.8 Published 15 Jun 2020 Updated 4 Aug 2024

A buffer overflow in Janus WebRTC Server allows attackers to execute arbitrary code or cause denial of service via crafted SDP packets.

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

What is CVE-2020-14034?

CVE-2020-14034 is a critical memory corruption vulnerability in n/a, published on 15 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_get_codec_from_pt in utils.c has a Buffer Overflow via long value in an SDP Offer packet.

Weakness: CWE-120

Which versions are affected by CVE-2020-14034?

It affects 1 product.

Products include Meetecho Janus.

How do I fix CVE-2020-14034?

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-2020-14034 being exploited?

There is no known exploitation of CVE-2020-14034 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2020-14034, GHSA-43r3-f7j4-6552, UBUNTU-CVE-2020-14034.