Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-94640: A flaw was found in rpcbind. This vulnerability allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by sending a large number of unique requests. The rpcbind service records previously unseen RPC (Remote Procedure Call) statistics in unbounded in-memory lists, leading to persistent memory growth and increased CPU usage. This can degrade or exhaust service availability.
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | rpcbind | 0:0.2.0-45.amzn2 |
| Amazon Linux · 2 | rpcbind-debuginfo | 0:0.2.0-45.amzn2 |
Vulnerabilities 1
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High 7.5
Rpcbind: unbounded memory allocation in rpcbind statistics tracking allows unauthenticated remote denial of service
A flaw was found in rpcbind. This vulnerability allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by sending a large number of unique requests. The rpcbind service records previously unseen RPC (Remote Procedure Call) statistics in …
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-94640.html