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Amazon Linux 2023: CVE-2023-47108: Important priority package update for amazon-cloudwatch-agent

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Amazon Linux 2023: CVE-2023-47108: Important priority package update for amazon-cloudwatch-agent

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
11/10/2023
Created
02/14/2025
Added
02/14/2025
Modified
02/14/2025

Description

OpenTelemetry-Go Contrib is a collection of third-party packages for OpenTelemetry-Go. Prior to version 0.46.0, the grpc Unary Server Interceptor out of the box adds labels `net.peer.sock.addr` and `net.peer.sock.port` that have unbound cardinality. It leads to the server's potential memory exhaustion when many malicious requests are sent. An attacker can easily flood the peer address and port for requests. Version 0.46.0 contains a fix for this issue. As a workaround to stop being affected, a view removing the attributes can be used. The other possibility is to disable grpc metrics instrumentation by passing `otelgrpc.WithMeterProvider` option with `noop.NewMeterProvider`. A memory exhaustion flaw was found in the otelgrpc handler of open-telemetry. This flaw may allow a remote unauthenticated attacker to flood the peer address and port and exhaust the server's memory by sending multiple malicious requests, affecting the availability of the system.

Solution(s)

  • amazon-linux-2023-upgrade-amazon-cloudwatch-agent

References

  • https://attackerkb.com/topics/cve-2023-47108
  • CVE - 2023-47108
  • https://alas.aws.amazon.com/AL2023/ALAS-2024-498.html
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