CVE-2022-31019 Information
Description
Vapor is a server-side Swift HTTP web framework. When using automatic content decoding an attacker can craft a request body that can make the server crash with the following request: curl -d rray[_0][0][array][_0][0][array]$(for f in $(seq 1100); do echo -n '[_0][0][array]'; done)[string][_0]=hello%20world\ http://localhost:8080/foo. The issue is unbounded attacker controlled stack growth which will at some point lead to a stack overflow and a process crash. This issue has been fixed in version 4.61.1.
Reference
https://github.com/vapor/vapor/security/advisories/GHSA-qvxg-wjxc-r4gg
https://github.com/vapor/vapor/commit/6c63226a4ab82ce53730eb1afb9ca63866fcf033
Vapor
is
a
server-side
Swift
HTTP
web
framework.
When
using
automatic
content
decoding
an
attacker
can
craft
a
request
body
that
can
make
the
server
crash
with
the
following
request:
curl -d rray[_0][0][array][_0][0][array]$(for f in $(seq 1100); do echo -n '[_0][0][array]'; done)[string][_0]=hello%20world\ [***http://localhost:8080/foo.***](http://localhost:8080/foo`.)
The
issue
is
unbounded
attacker
controlled
stack
growth
which
will
at
some
point
lead
to
a
stack
overflow
and
a
process
crash.
This
issue
has
been
fixed
in
version
4.61.1.