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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-27595 Detail

Description

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In version 1.13.0, when Cilium is started, there is a short period when Cilium eBPF programs are not attached to the host. During this period, the host does not implement any of Cilium's featureset. This can cause disruption to newly established connections during this period due to the lack of Load Balancing, or can cause Network Policy bypass due to the lack of Network Policy enforcement during the window. This vulnerability impacts any Cilium-managed endpoints on the node (such as Kubernetes Pods), as well as the host network namespace (including Host Firewall). This vulnerability is fixed in Cilium 1.13.1 or later. Cilium releases 1.12.x, 1.11.x, and earlier are not affected. There are no known workarounds.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/cilium/cilium/pull/24336 Third Party Advisory 
https://github.com/cilium/cilium/pull/24336 Third Party Advisory 
https://github.com/cilium/cilium/releases/tag/v1.13.1 Third Party Advisory 
https://github.com/cilium/cilium/releases/tag/v1.13.1 Third Party Advisory 
https://github.com/cilium/cilium/security/advisories/GHSA-r5x6-w42p-jhpp Third Party Advisory 
https://github.com/cilium/cilium/security/advisories/GHSA-r5x6-w42p-jhpp Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-755 Improper Handling of Exceptional Conditions GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-27595
NVD Published Date:
03/17/2023
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.