Unbounded Memory Allocation Vulnerability in Netty by Lightbend
CVE-2020-11612

7.5HIGH

Key Information:

Vendor
Netty
Status
Netty
Vendor
CVE Published:
7 April 2020

Summary

The ZlibDecoders in Netty versions 4.1.x prior to 4.1.46 enable attackers to cause unbounded memory allocation. By sending a large Zlib-encoded byte stream, an attacker can monopolize a server's memory resources, leading to potential denial of service as the server struggles to allocate memory for the decoding process. This vulnerability highlights the importance of maintaining updated software versions to mitigate potential risks.

References

https://lists.apache.org/thread.html/r2958e4d49ee046e1e56...
mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r3195127e46c87a680b5...
mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r14446ed58208cb6d97b...
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2020-11612 : Unbounded Memory Allocation Vulnerability in Netty by Lightbend | SecurityVulnerability.io