What’s Vulnerable › Vulnerabilities

CVE-2022-41881

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-12-12 · updated 2026-06-17
• Weakness: CWE-674

Description

Netty project is an event-driven asynchronous network application framework. In versions prior to 4.1.86.Final, a StackOverflowError can be raised when parsing a malformed crafted message due to an infinite recursion. This issue is patched in version 4.1.86.Final. There is no workaround, except using a custom HaProxyMessageDecoder.

Affected products

• Debian Linux: 10.0, 11.0
• netty: before 4.1.86 — fixed in 4.1.86

How to fix

Upgrade to a fixed version: netty 4.1.86. Check the vendor advisory for mitigations.

References

• https://github.com/netty/netty/security/advisories/GHSA-fx2c-96vj-985v
• https://lists.debian.org/debian-lts-announce/2023/01/msg00008.html
• https://security.netapp.com/advisory/ntap-20230113-0004/
• https://www.debian.org/security/2023/dsa-5316
• https://github.com/netty/netty/security/advisories/GHSA-fx2c-96vj-985v
• https://lists.debian.org/debian-lts-announce/2023/01/msg00008.html
• https://security.netapp.com/advisory/ntap-20230113-0004/
• https://www.debian.org/security/2023/dsa-5316

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