CVE-2023-34462
Summary
| CVE | CVE-2023-34462 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-06-22 23:15:00 UTC |
| Updated | 2023-11-18 21:15:00 UTC |
| Description | Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. The `SniHandler` can allocate up to 16MB of heap for each channel during the TLS handshake. When the handler or the channel does not have an idle timeout, it can be used to make a TCP server using the `SniHandler` to allocate 16MB of heap. The `SniHandler` class is a handler that waits for the TLS handshake to configure a `SslHandler` according to the indicated server name by the `ClientHello` record. For this matter it allocates a `ByteBuf` using the value defined in the `ClientHello` record. Normally the value of the packet should be smaller than the handshake packet but there are not checks done here and the way the code is written, it is possible to craft a packet that makes the `SslClientHelloHandler`. This vulnerability has been fixed in version 4.1.94.Final. |
Risk And Classification
Problem Types: CWE-400
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| CVE-2023-34462 Apache Netty Vulnerability in NetApp Products | NetApp Product Security | MISC | security.netapp.com | |
| Merge pull request from GHSA-6mjq-h674-j845 · netty/netty@535da17 · GitHub | MISC | github.com | |
| www.debian.org/security/2023/dsa-5558 | www.debian.org | ||
| SniHandler 16MB allocation · Advisory · netty/netty · GitHub | MISC | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 20391 IBM DB2 Denial of Service (DoS) Vulnerability (7087234)
- 242105 Red Hat Update for JBoss Enterprise Application Platform 7.4.1 on RHEL 9 (RHSA-2023:5486)
- 242106 Red Hat Update for JBoss Enterprise Application Platform 7.4.1 on RHEL 7 (RHSA-2023:5484)
- 242122 Red Hat Update for JBoss Enterprise Application Platform 7.4.1 on RHEL 8 (RHSA-2023:5485)
- 378947 Oracle Coherence October 2023 Critical Patch Update (CPUOCT2023)
- 6000331 Debian Security Update for netty (DSA 5558-1)
- 754215 SUSE Enterprise Linux Security Update for netty, netty-tcnative (SUSE-SU-2023:2974-1)