CVE-2023-27594

Published on: Not Yet Published

Last Modified on: 03/24/2023 04:33:00 PM UTC

CVE-2023-27594 - advisory for GHSA-8fg8-jh2h-f2hc

Source: Mitre Source: NIST CVE.ORG Print: PDF PDF
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Certain versions of Cilium from Cilium contain the following vulnerability:

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.11.15, 1.12.8, and 1.13.1, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which Cilium is running. As a consequence, network policies for that cluster might be bypassed, depending on the specific network policies enabled. This issue only manifests when Cilium is routing IPv6 traffic and NodePorts are used to route traffic to pods. IPv6 and endpoint routes are both disabled by default. The problem has been fixed and is available on versions 1.11.15, 1.12.8, and 1.13.1. As a workaround, disable IPv6 routing.

  • CVE-2023-27594 has been assigned by URL Logo security-adviso[email protected] to track the vulnerability - currently rated as HIGH severity.
  • Affected Vendor/Software: URL Logo cilium - cilium version = < 1.11.15
  • Affected Vendor/Software: URL Logo cilium - cilium version = >= 1.12.0, < 1.12.8
  • Affected Vendor/Software: URL Logo cilium - cilium version = >= 1.13.0, < 1.13.1

CVSS3 Score: 7.3 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED LOW LOW LOW

CVE References

Description Tags Link
Release 1.11.15 · cilium/cilium · GitHub github.com
text/html
URL Logo MISC github.com/cilium/cilium/releases/tag/v1.11.15
Potential network policy bypass when routing IPv6 traffic · Advisory · cilium/cilium · GitHub github.com
text/html
URL Logo MISC github.com/cilium/cilium/security/advisories/GHSA-8fg8-jh2h-f2hc
Release 1.13.1 · cilium/cilium · GitHub github.com
text/html
URL Logo MISC github.com/cilium/cilium/releases/tag/v1.13.1
Release 1.12.8 · cilium/cilium · GitHub github.com
text/html
URL Logo MISC github.com/cilium/cilium/releases/tag/v1.12.8

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationCiliumCiliumAllAllAllAll
  • cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2023-27594 : Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior t… twitter.com/i/web/status/1… 2023-03-17 20:05:26
Reddit Logo Icon /r/netcve CVE-2023-27594 2023-03-17 20:38:48
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