CVE - CVE-2023-34462

CVE-ID
CVE-2023-34462	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://security.netapp.com/advisory/ntap-20230803-0001/ DEBIAN:DSA-5558 URL:https://www.debian.org/security/2023/dsa-5558 MISC:https://github.com/netty/netty/commit/535da17e45201ae4278c0479e6162bb4127d4c32 URL:https://github.com/netty/netty/commit/535da17e45201ae4278c0479e6162bb4127d4c32 MISC:https://github.com/netty/netty/security/advisories/GHSA-6mjq-h674-j845 URL:https://github.com/netty/netty/security/advisories/GHSA-6mjq-h674-j845
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20230606	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20230606)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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