x/vulndb: potential Go vuln in github.com/cilium/cilium: CVE-2023-27595

[GoVulnBot]

CVE-2023-27595 references github.com/cilium/cilium, which may be a Go module.

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.

References:

• NIST: https://nvd.nist.gov/vuln/detail/CVE-2023-27595
• JSON: https://github.com/CVEProject/cvelist/tree/4ae9125ffeb4747f5c09b438fb60066cce4d72d9/2023/27xxx/CVE-2023-27595.json
• web: https://github.com/cilium/cilium/releases/tag/v1.13.1
• advisory: GHSA-r5x6-w42p-jhpp
• fix: bpf,init.sh: make netdev bpf filter cleanup less eager cilium/cilium#24336
• Imported by: https://pkg.go.dev/github.com/cilium/cilium?tab=importedby

Cross references:

• Module github.com/cilium/cilium appears in issue x/vulndb: potential Go vuln in github.com/cilium/cilium: GHSA-c66w-hq56-4q97 #393 EFFECTIVELY_PRIVATE
• Module github.com/cilium/cilium appears in issue x/vulndb: potential Go vuln in github.com/cilium/cilium: CVE-2022-29178 #457 EFFECTIVELY_PRIVATE
• Module github.com/cilium/cilium appears in issue x/vulndb: potential Go vuln in github.com/cilium/cilium: CVE-2022-29179 #458 EFFECTIVELY_PRIVATE
• Module github.com/cilium/cilium appears in issue x/vulndb: potential Go vuln in github.com/cilium/cilium: GHSA-wc5v-r48v-g4vh #530 NOT_GO_CODE
• Module github.com/cilium/cilium appears in issue x/vulndb: potential Go vuln in github.com/cilium/cilium: GHSA-pfhr-pccp-hwmh #959 EFFECTIVELY_PRIVATE

See doc/triage.md for instructions on how to triage this report.

modules:
  - module: github.com/cilium/cilium
    packages:
      - package: cilium
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.
cves:
  - CVE-2023-27595
references:
  - web: https://github.com/cilium/cilium/releases/tag/v1.13.1
  - advisory: https://github.com/cilium/cilium/security/advisories/GHSA-r5x6-w42p-jhpp
  - fix: https://github.com/cilium/cilium/pull/24336

[jba]

Duplicate of #1644