🚨 [security] Update rack: 2.2.3 → 2.2.6.2 (minor)

🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

↗️ rack (indirect, 2.2.3 → 2.2.6.2) · Repo · Changelog

Security Advisories 🚨

🚨 Denial of Service Vulnerability in Rack Content-Disposition parsing

There is a denial of service vulnerability in the Content-Disposition parsing
component of Rack. This vulnerability has been assigned the CVE identifier
CVE-2022-44571.

Versions Affected: >= 2.0.0
Not affected: None.
Fixed Versions: 2.0.9.2, 2.1.4.2, 2.2.6.1, 3.0.4.1

Impact

Carefully crafted input can cause Content-Disposition header parsing in Rack
to take an unexpected amount of time, possibly resulting in a denial of
service attack vector. This header is used typically used in multipart
parsing. Any applications that parse multipart posts using Rack (virtually
all Rails applications) are impacted.

Workarounds

There are no feasible workarounds for this issue.

🚨 Denial of service via multipart parsing in Rack

There is a denial of service vulnerability in the multipart parsing component
of Rack. This vulnerability has been assigned the CVE identifier
CVE-2022-44572.

Versions Affected: >= 2.0.0
Not affected: None.
Fixed Versions: 2.0.9.2, 2.1.4.2, 2.2.6.1, 3.0.4.1

Impact

Carefully crafted input can cause RFC2183 multipart boundary parsing in Rack
to take an unexpected amount of time, possibly resulting in a denial of
service attack vector. Any applications that parse multipart posts using
Rack (virtually all Rails applications) are impacted.

Workarounds

There are no feasible workarounds for this issue.

🚨 Denial of service via header parsing in Rack

There is a possible denial of service vulnerability in the Range header
parsing component of Rack. This vulnerability has been assigned the CVE
identifier CVE-2022-44570.

Versions Affected: >= 1.5.0
Not affected: None.
Fixed Versions: 2.0.9.2, 2.1.4.2, 2.2.6.2, 3.0.4.1

Impact

Carefully crafted input can cause the Range header parsing component in Rack
to take an unexpected amount of time, possibly resulting in a denial of
service attack vector. Any applications that deal with Range requests (such
as streaming applications, or applications that serve files) may be impacted.

Workarounds

There are no feasible workarounds for this issue.

🚨 Denial of Service Vulnerability in Rack Multipart Parsing

There is a possible denial of service vulnerability in the multipart parsing
component of Rack. This vulnerability has been assigned the CVE identifier
CVE-2022-30122.

Versions Affected: >= 1.2
Not affected: < 1.2
Fixed Versions: 2.0.9.1, 2.1.4.1, 2.2.3.1

Impact

Carefully crafted multipart POST requests can cause Rack's multipart parser to
take much longer than expected, leading to a possible denial of service
vulnerability.

Impacted code will use Rack's multipart parser to parse multipart posts. This
includes directly using the multipart parser like this:
params = Rack::Multipart.parse_multipart(env)
But it also includes reading POST data from a Rack request object like this:
p request.POST # read POST data
p request.params # reads both query params and POST data
All users running an affected release should either upgrade or use one of the
workarounds immediately.

Workarounds

There are no feasible workarounds for this issue.

🚨 Possible shell escape sequence injection vulnerability in Rack

There is a possible shell escape sequence injection vulnerability in the Lint
and CommonLogger components of Rack. This vulnerability has been assigned the
CVE identifier CVE-2022-30123.

Versions Affected: All.
Not affected: None
Fixed Versions: 2.0.9.1, 2.1.4.1, 2.2.3.1

Impact

Carefully crafted requests can cause shell escape sequences to be written to
the terminal via Rack's Lint middleware and CommonLogger middleware. These
escape sequences can be leveraged to possibly execute commands in the victim's
terminal.

Impacted applications will have either of these middleware installed, and
vulnerable apps may have something like this:
use Rack::Lint
Or
use Rack::CommonLogger
All users running an affected release should either upgrade or use one of the
workarounds immediately.

Workarounds

Remove these middleware from your application

Commits

See the full diff on Github. The new version differs by 30 commits:

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