CVE-2025-24970: SslHandler doesn't correctly validate packets which can lead to native crash when using native SSLEngine
Description
Netty, an asynchronous, event-driven network application framework, has a vulnerability starting in version 4.1.91.Final and prior to version 4.1.118.Final. When a special crafted packet is received via SslHandler it doesn't correctly handle validation of such a packet in all cases which can lead to a native crash. Version 4.1.118.Final contains a patch. As workaround its possible to either disable the usage of the native SSLEngine or change the code manually.
Classification
CVE ID: CVE-2025-24970
CVSS Base Severity: HIGH
CVSS Base Score: 7.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
Vendor: netty
Product: netty
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 11.88% (scored less or equal to compared to others)
EPSS Date: 2025-03-11 (when was this score calculated)
References
https://github.com/netty/netty/security/advisories/GHSA-4g8c-wm8x-jfhwhttps://github.com/netty/netty/commit/87f40725155b2f89adfde68c7732f97c153676c4