cve-2023-27595
Vulnerability from cvelistv5
Published
2023-03-17 21:12
Modified
2024-08-02 12:16
Severity ?
EPSS score ?
Summary
Cilium eBPF filters may be temporarily removed during agent restart
References
▼ | URL | Tags | |
---|---|---|---|
security-advisories@github.com | https://github.com/cilium/cilium/pull/24336 | Third Party Advisory | |
security-advisories@github.com | https://github.com/cilium/cilium/releases/tag/v1.13.1 | Third Party Advisory | |
security-advisories@github.com | https://github.com/cilium/cilium/security/advisories/GHSA-r5x6-w42p-jhpp | Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://github.com/cilium/cilium/pull/24336 | Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://github.com/cilium/cilium/releases/tag/v1.13.1 | Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://github.com/cilium/cilium/security/advisories/GHSA-r5x6-w42p-jhpp | Third Party Advisory |
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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\u0027s 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": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-755", "description": "CWE-755: Improper Handling of Exceptional Conditions", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2023-03-17T21:12:00.903Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "name": "https://github.com/cilium/cilium/security/advisories/GHSA-r5x6-w42p-jhpp", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/cilium/cilium/security/advisories/GHSA-r5x6-w42p-jhpp" }, { "name": "https://github.com/cilium/cilium/pull/24336", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/cilium/cilium/pull/24336" }, { "name": "https://github.com/cilium/cilium/releases/tag/v1.13.1", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/cilium/cilium/releases/tag/v1.13.1" } ], "source": { "advisory": "GHSA-r5x6-w42p-jhpp", "discovery": "UNKNOWN" }, "title": "Cilium eBPF filters may be temporarily removed during agent restart" } }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2023-27595", "datePublished": "2023-03-17T21:12:00.903Z", "dateReserved": "2023-03-04T01:03:53.636Z", "dateUpdated": "2024-08-02T12:16:36.027Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2023-27595\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2023-03-17T22:15:11.317\",\"lastModified\":\"2024-11-21T07:53:13.503\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. 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There are no known workarounds.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.2,\"impactScore\":3.7},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-755\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cilium:cilium:1.13.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"98474F0A-829C-41BE-A549-A3E7E6636AA6\"}]}]}],\"references\":[{\"url\":\"https://github.com/cilium/cilium/pull/24336\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/cilium/cilium/releases/tag/v1.13.1\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/cilium/cilium/security/advisories/GHSA-r5x6-w42p-jhpp\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/cilium/cilium/pull/24336\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/cilium/cilium/releases/tag/v1.13.1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/cilium/cilium/security/advisories/GHSA-r5x6-w42p-jhpp\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}" } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.