GHSA-2mvq-xp48-4c77 Denial of Service in subtext

Not scored Published

Attackers can cause Denial of Service by sending large chunked payloads that bypass maxBytes limits, exhausting system resources.

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

What is GHSA-2mvq-xp48-4c77?

GHSA-2mvq-xp48-4c77 is a denial of service vulnerability in subtext, published on 3 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

All versions of subtext are vulnerable to Denial of Service (DoS). The package fails to enforce the maxBytes configuration for payloads with chunked encoding that are written to the file system. This allows attackers to send requests with arbitrary payload sizes, which may exhaust system resources leading to Denial of Service.

Recommendation

This package is not actively maintained and has been moved to @hapi/subtext where version 6.1.2.

Which versions are affected by GHSA-2mvq-xp48-4c77?

2 open source packages ship an affected version, including subtext.

PackageAffectedFixed in
subtext npmFrom 0.0.0None
subtext npmFrom 0.0.0None

How do I fix GHSA-2mvq-xp48-4c77?

No fix has been published for GHSA-2mvq-xp48-4c77 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 GHSA-2mvq-xp48-4c77 being exploited?

There is no known exploitation of GHSA-2mvq-xp48-4c77 in the wild and no public exploit code.

Sources

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