Description

A vulnerability was found in Undertow where the ProxyProtocolReadListener reuses the same StringBuilder instance across multiple requests. This issue occurs when the parseProxyProtocolV1 method processes multiple requests on the same HTTP connection. As a result, different requests may share the same StringBuilder instance, potentially leading to information leakage between requests or responses. In some cases, a value from a previous request or response may be erroneously reused, which could lead to unintended data exposure. This issue primarily results in errors and connection termination but creates a risk of data leakage in multi-request environments.

Classification

CVE ID: CVE-2024-7885

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.1% (probability of being exploited)

EPSS Percentile: 42.49% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://access.redhat.com/errata/RHSA-2024:11023
https://access.redhat.com/errata/RHSA-2024:6508
https://access.redhat.com/errata/RHSA-2024:6883
https://access.redhat.com/errata/RHSA-2024:7441
https://access.redhat.com/errata/RHSA-2024:7442
https://access.redhat.com/errata/RHSA-2024:7735
https://access.redhat.com/errata/RHSA-2024:7736
https://access.redhat.com/security/cve/CVE-2024-7885
https://bugzilla.redhat.com/show_bug.cgi?id=2305290

Timeline