CVE-2022-41915
Netty vulnerable to HTTP Response splitting from assigning header value iterator
Description
Netty project is an event-driven asynchronous network application framework. Starting in version 4.1.83.Final and prior to 4.1.86.Final, when calling `DefaultHttpHeadesr.set` with an _iterator_ of values, header value validation was not performed, allowing malicious header values in the iterator to perform HTTP Response Splitting. This issue has been patched in version 4.1.86.Final. Integrators can work around the issue by changing the `DefaultHttpHeaders.set(CharSequence, Iterator<?>)` call, into a `remove()` call, and call `add()` in a loop over the iterator of values.
How to fix CVE-2022-41915
To remediate CVE-2022-41915, upgrade the affected package to a fixed version below.
- —upgrade to 1:4.1.48-4+deb11u1 or later
- —upgrade to 4.1.86.Final or later
Is CVE-2022-41915 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1:4.1.48-4+deb11u1
- >= 4.1.83.Final, < 4.1.86.Final
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |