CVE-2022-41915
Netty vulnerable to HTTP Response splitting from assigning header value iterator
Impact
### Impact When calling `DefaultHttpHeaders.set` with an _iterator_ of values (as opposed to a single given value), header value validation was not performed, allowing malicious header values in the iterator to perform [HTTP Response Splitting](https://owasp.org/www-community/attacks/HTTP_Response_Splitting). ### Patches The necessary validation was added in Netty 4.1.86.Final. ### Workarounds 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. ### References [HTTP Response Splitting](https://owasp.org/www-community/attacks/HTTP_Response_Splitting) [CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers](https://cwe.mitre.org/data/definitions/113.html) ### For more information If you have any questions or comments about this advisory: * Open an issue in [[example link to repo](https://github.com/netty/netty)](https://github.com/netty/netty) * Email us at [netty-security@googlegroups.com](mailto:netty-security@googlegroups.com)
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | io.netty:netty-codec-http | >= 4.1.83.Final, < 4.1.86.Final | 4.1.86.Final |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Netty | Netty | from 4.1.83 before 4.1.86 |
| Debian | Debian Linux | Versions 10.0, 11.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/netty/netty/commit/fe18adff1c2b333acb135ab779a3b9ba3295a1c4
- https://github.com/netty/netty/issues/13084
- https://github.com/netty/netty/pull/12760
- https://github.com/netty/netty/security/advisories/GHSA-hh82-3pmq-7frp
- https://lists.debian.org/debian-lts-announce/2023/01/msg00008.html
- https://security.netapp.com/advisory/ntap-20230113-0004/
- https://www.debian.org/security/2023/dsa-5316
- https://github.com/advisories/GHSA-hh82-3pmq-7frp
- https://nvd.nist.gov/vuln/detail/CVE-2022-41915
- https://github.com/netty/netty/commit/c37c637f096e7be3dffd36edee3455c8e90cb1b0