Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-hh82-3pmq-7frp
Advisory ID github_osv/GHSA-hh82-3pmq-7frp
Aliases CVE-2022-41915
Summary Netty vulnerable to HTTP Response splitting from assigning header value iterator ### 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)
Status Published
Exploitability 0.5
Weighted Severity 5.9
Risk 3.0
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-hh82-3pmq-7frp/GHSA-hh82-3pmq-7frp.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.