Denial of service in Netty
The SslHandler in Netty before 3.9.2 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a crafted SSLv2Hello message.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | io.netty:netty-handler | < 3.9.2 | 3.9.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2014-3488
- https://github.com/netty/netty/issues/2562
- https://github.com/netty/netty/commit/2fa9400a59d0563a66908aba55c41e7285a04994
- https://github.com/netty/netty
- https://lists.debian.org/debian-lts-announce/2020/02/msg00018.html
- https://snyk.io/vuln/SNYK-JAVA-ORGJBOSSNETTY-31630
- http://netty.io/news/2014/06/11/3-9-2-Final.html
- http://secunia.com/advisories/59196
- Weakness (CWE)
CWE-119- Platform
- Java / Kotlin (Maven)
- Package
io.netty:netty-handler- Disclosed
- 30.06.2020
- Updated
- 11.10.2026 11:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-9959-6p3m-wxpc - CC BY 4.0
Vulnerability history: io.netty:netty-handler
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 12
- First → latest
- 02.2020 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 7
- Medium 4
Disclosures per year
- 2020: 4
- 2021: 0
- 2022: 1
- 2023: 1
- 2024: 0
- 2025: 1
- 2026: 5
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Denial of service in Netty this entry
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