CVE-2019-3563 Integer overflow in Wangle

Critical 9.8 Published 29 Apr 2019 Updated 4 Aug 2024

A buffer underflow in Wangle's LineBasedFrameDecoder can lead to memory corruption, potentially causing denial of service or arbitrary code execution.

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-2019-3563?

CVE-2019-3563 is a critical vulnerability in Facebook Wangle, published on 29 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Wangle's LineBasedFrameDecoder contains logic for identifying newlines which incorrectly advances a buffer, leading to a potential underflow. This affects versions of Wangle prior to v2019.04.22.00

Weakness: CWE-787, CWE-126

Which versions are affected by CVE-2019-3563?

It affects 1 product.

Products include Facebook Wangle.

How do I fix CVE-2019-3563?

No fix has been published for CVE-2019-3563 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-3563 being exploited?

There is no known exploitation of CVE-2019-3563 in the wild and no public exploit code.

CVE-2019-3554 Wangle's AcceptRoutingHandler incorrectly casts a socket when accepting a TLS 1.3 connection, leading to a potential denial of service attac Medium 5.9

Sources

Also known as GHSA-r679-82m4-w988.