CVE-2022-41881 – io.netty:netty-codec-haproxy

Package

Manager: maven
Name: io.netty:netty-codec-haproxy
Vulnerable Version: >=0 <4.1.86.final

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00077 pctl0.23582

Details

HAProxyMessageDecoder Stack Exhaustion DoS ### Impact A StackOverflowError can be raised when parsing a malformed crafted message due to an infinite recursion. ### Patches Users should upgrade to 4.1.86.Final. ### Workarounds There is no workaround, except using a custom HaProxyMessageDecoder. ### References When parsing a TLV with type = PP2_TYPE_SSL, the value can be again a TLV with type = PP2_TYPE_SSL and so on. The only limitation of the recursion is that the TLV length cannot be bigger than 0xffff because it is encoded in an unsigned short type. Providing a TLV with a nesting level that is large enough will lead to raising of a StackOverflowError. The StackOverflowError will be caught if HAProxyMessageDecoder is used as part of Netty’s ChannelPipeline, but using it directly without the ChannelPipeline will lead to a thrown exception / crash. ### For more information If you have any questions or comments about this advisory: * Open an issue in [netty](https://github.com/netty/netty)

Metadata

Created: 2022-12-12T21:24:29Z
Modified: 2023-01-13T17:18:24Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-fx2c-96vj-985v/GHSA-fx2c-96vj-985v.json
CWE IDs: ["CWE-674"]
Alternative ID: GHSA-fx2c-96vj-985v
Finding: F067
Auto approve: 1