CVE-2024-29025
MEDIUM5.3EPSS 0.34%Netty's HttpPostRequestDecoder can OOM
描述
### Summary The `HttpPostRequestDecoder` can be tricked to accumulate data. I have spotted currently two attack vectors ### Details 1. While the decoder can store items on the disk if configured so, there are no limits to the number of fields the form can have, an attacher can send a chunked post consisting of many small fields that will be accumulated in the `bodyListHttpData` list. 2. The decoder cumulates bytes in the `undecodedChunk` buffer until it can decode a field, this field can cumulate data without limits ### PoC Here is a Netty branch that provides a fix + tests : https://github.com/vietj/netty/tree/post-request-decoder Here is a reproducer with Vert.x (which uses this decoder) https://gist.github.com/vietj/f558b8ea81ec6505f1e9a6ca283c9ae3 ### Impact Any Netty based HTTP server that uses the `HttpPostRequestDecoder` to decode a form.
受影響套件(4)
- Debian/nettyfrom 0, < 1:4.1.48-4+deb11u3
- Debian/nettyfrom 0, < 1:4.1.33-1+deb10u5
- Debian/nettyfrom 0, < 1:4.1.48-4+deb11u3
- Maven/io.netty:netty-codec-httpfrom 0, < 4.1.108.Final
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
參考連結(8)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2024-29025
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2024-29025
- PATCHhttps://github.com/netty/netty
- WEBhttps://gist.github.com/vietj/f558b8ea81ec6505f1e9a6ca283c9ae3
- WEBhttps://github.com/netty/netty/commit/0d0c6ed782d13d423586ad0c71737b2c7d02058c
- WEBhttps://github.com/netty/netty/security/advisories/GHSA-5jpm-x58v-624v
- WEBhttps://github.com/vietj/netty/tree/post-request-decoder
- WEBhttps://lists.debian.org/debian-lts-announce/2024/06/msg00015.html