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x/vulndb: potential Go vuln in github.com/cilium/cilium: CVE-2023-41332 #2082

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GoVulnBot opened this issue Sep 27, 2023 · 3 comments
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CVE-2023-41332 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 Cilium clusters where Cilium's Layer 7 proxy has been disabled, creating workloads with policy.cilium.io/proxy-visibility annotations (in Cilium >= v1.13) or io.cilium.proxy-visibility annotations (in Cilium <= v1.12) causes the Cilium agent to segfault on the node to which the workload is assigned. Existing traffic on the affected node will continue to flow, but the Cilium agent on the node will not able to process changes to workloads running on the node. This will also prevent workloads from being able to start on the affected node. The denial of service will be limited to the node on which the workload is scheduled, however an attacker may be able to schedule workloads on the node of their choosing, which could lead to targeted attacks. This issue has been resolved in Cilium versions 1.14.2, 1.13.7, and 1.12.14. Users unable to upgrade can avoid this denial of service attack by enabling the Layer 7 proxy.

References:

Cross references:

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

modules:
    - module: github.com/cilium/cilium
      vulnerable_at: 1.14.2
      packages:
        - package: cilium
description: |-
    Cilium is a networking, observability, and security solution with an eBPF-based
    dataplane. In Cilium clusters where Cilium's Layer 7 proxy has been disabled,
    creating workloads with `policy.cilium.io/proxy-visibility` annotations (in
    Cilium >= v1.13) or `io.cilium.proxy-visibility` annotations (in Cilium <=
    v1.12) causes the Cilium agent to segfault on the node to which the workload is
    assigned. Existing traffic on the affected node will continue to flow, but the
    Cilium agent on the node will not able to process changes to workloads running
    on the node. This will also prevent workloads from being able to start on the
    affected node. The denial of service will be limited to the node on which the
    workload is scheduled, however an attacker may be able to schedule workloads on
    the node of their choosing, which could lead to targeted attacks. This issue has
    been resolved in Cilium versions 1.14.2, 1.13.7, and 1.12.14. Users unable to
    upgrade can avoid this denial of service attack by enabling the Layer 7 proxy.
cves:
    - CVE-2023-41332
references:
    - advisory: https://github.com/cilium/cilium/security/advisories/GHSA-24m5-r6hv-ccgp
    - fix: https://github.com/cilium/cilium/pull/27597

@jba jba self-assigned this Oct 2, 2023
@jba
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jba commented Oct 2, 2023

Vulnerability in tool.

@jba jba added the excluded: EFFECTIVELY_PRIVATE This vulnerability exists in a package can be imported, but isn't meant to be outside that module. label Oct 2, 2023
@gopherbot
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Change https://go.dev/cl/531705 mentions this issue: data/excluded: batch add 18 excluded reports

@jba
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jba commented Oct 2, 2023

Duplicate of #2079

@jba jba marked this as a duplicate of #2079 Oct 2, 2023
@jba jba added duplicate and removed excluded: EFFECTIVELY_PRIVATE This vulnerability exists in a package can be imported, but isn't meant to be outside that module. labels Oct 2, 2023
@jba jba closed this as completed Oct 2, 2023
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