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  5. CVE-2023-0296

CVE-2023-0296: Use of a Broken or Risky Cryptographic Algorithm

January 17, 2023 (updated February 13, 2023)

The Birthday attack against 64-bit block ciphers flaw (CVE-2016-2183) was reported for the health checks port (9979) on etcd grpc-proxy component. Even though the CVE-2016-2183 has been fixed in the etcd components, to enable periodic health checks from kubelet, it was necessary to open up a new port (9979) on etcd grpc-proxy, hence this port might be considered as still vulnerable to the same type of vulnerability. The health checks on etcd grpc-proxy do not contain sensitive data (only metrics data), therefore the potential impact related to this vulnerability is minimal. The CVE-2023-0296 has been assigned to this issue to track the permanent fix in the etcd component.

References

  • bugzilla.redhat.com/show_bug.cgi?id=2161287
  • nvd.nist.gov/vuln/detail/CVE-2023-0296

Code Behaviors & Features

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Affected versions

Version 4.11

Solution

Unfortunately, there is no solution available yet.

Impact 5.3 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-327: Use of a Broken or Risky Cryptographic Algorithm

Source file

go/github.com/openshift/builder/pkg/build/builder/CVE-2023-0296.yml

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