Netty
CVE-2020-11612
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1DescriptionNVD
The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.
AnalysisAI
The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Allocation of Resources Without Limits vulnerability could allow attackers to exhaust system resources through uncontrolled allocation.
Technical ContextAI
This vulnerability is classified as Allocation of Resources Without Limits (CWE-770), which allows attackers to exhaust system resources through uncontrolled allocation. The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder. Affected products include: Netty, Debian Debian Linux, Fedoraproject Fedora, Netapp Oncommand Api Services, Netapp Oncommand Insight. Version information: before 4.1.46.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Set resource limits, implement rate limiting, validate input sizes.
Denial of service against HTTP/2 server implementations allows remote unauthenticated attackers to exhaust server resour
Certificate revocation-check bypass in the Netty network framework's OCSP client (io.netty:netty-handler-ssl-ocsp) affec
Netty, an asynchronous, event-driven network application framework, has a vulnerability starting in version 4.1.91.Final
Memory exhaustion in Netty's SctpMessageCompletionHandler (netty-transport-sctp) allows unauthenticated remote peers to
Compression-amplification denial of service in the Netty network framework (versions prior to 4.1.136.Final and 4.2.16.F
Memory-amplification denial of service in the Netty network framework (SPDY/3.1 codec) prior to 4.1.136.Final and 4.2.16
Memory-exhaustion denial of service in Netty's HTTP/3 codec (Http3FrameCodec) affects all releases prior to 4.2.16.Final
Denial of service in the Netty HTTP/3 codec (io.netty:netty-codec-http3) prior to version 4.2.15.Final allows remote una
Denial of service in Netty's io.netty:netty-codec-redis component (prior to 4.1.135.Final and 4.2.15.Final) allows remot
Netty project is an event-driven asynchronous network application framework. Rated high severity (CVSS 7.5), this vulner
Netty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace (such as a [space]Tr
Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked
Same technique Denial Of Service
View allShare
External POC / Exploit Code
Leaving vuln.today