CVE-2025-24970

SslHandler doesn't correctly validate packets which can lead to native crash when using native SSLEngine

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

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.

A flaw was found in Netty's SslHandler. This vulnerability allows a native crash via a specially crafted packet that bypasses proper validation.

This update for netty, netty-tcnative fixes the following issues. Incorrect validation of packets by SslHandler can lead to a native crash. Unsafe reading of environment files can lead to an application crash.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

Poc

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2025-01-29 CVE Reserved
2025-02-10 CVE Published
2025-04-16 CVE Updated
2025-07-21 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (4)

URL	Tag	Source
https://github.com/netty/netty/commit/87f40725155b2f89adfde68c7732f97c153676c4	X_refsource_misc
https://github.com/netty/netty/security/advisories/GHSA-4g8c-wm8x-jfhw	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2025-24970	2025-06-30
https://bugzilla.redhat.com/show_bug.cgi?id=2344787	2025-06-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Netty Search vendor "Netty"		Netty Search vendor "Netty" for product "Netty"				*		-		Affected
Redhat Search vendor "Redhat"		Jboss Enterprise Application Platform Search vendor "Redhat" for product "Jboss Enterprise Application Platform"				*		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				*		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				*		-		Affected
Suse Search vendor "Suse"		Packagehub Search vendor "Suse" for product "Packagehub"				*		-		Affected
Suse Search vendor "Suse"		Sle-module-development-tools Search vendor "Suse" for product "Sle-module-development-tools"				*		-		Affected
Suse Search vendor "Suse"		Sle Hpc-espos Search vendor "Suse" for product "Sle Hpc-espos"				*		-		Affected
Suse Search vendor "Suse"		Sle Hpc-ltss Search vendor "Suse" for product "Sle Hpc-ltss"				*		-		Affected
Suse Search vendor "Suse"		Sles-ltss Search vendor "Suse" for product "Sles-ltss"				*		-		Affected
Suse Search vendor "Suse"		Sles Sap Search vendor "Suse" for product "Sles Sap"				*		-		Affected