{
	"document":{
		"aggregate_severity":{
			"namespace":"https://nvd.nist.gov/vuln-metrics/cvss",
			"text":"Medium"
		},
		"category":"csaf_vex",
		"csaf_version":"2.0",
		"distribution":{
			"tlp":{
				"label":"WHITE",
				"url":"https:/www.first.org/tlp/"
			}
		},
		"lang":"en",
		"notes":[
			{
				"text":"libtpms security update",
				"category":"general",
				"title":"Synopsis"
			},
			{
				"text":"An update for libtpms is now available for openEuler-20.03-LTS-SP1.",
				"category":"general",
				"title":"Summary"
			},
			{
				"text":"A library providing TPM functionality for VMs. Targeted for integration into Qemu.\n\nSecurity Fix(es):\n\nA flaw was found in libtpms in versions before 0.8.0. The TPM 2 implementation returns 2048 bit keys with ~1984 bit strength due to a bug in the TCG specification. The bug is in the key creation algorithm in RsaAdjustPrimeCandidate(), which is called before the prime number check. The highest threat from this vulnerability is to data confidentiality.(CVE-2021-3505)",
				"category":"general",
				"title":"Description"
			},
			{
				"text":"An update for libtpms is now available for openEuler-20.03-LTS-SP1.\n\nopenEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.",
				"category":"general",
				"title":"Topic"
			},
			{
				"text":"Medium",
				"category":"general",
				"title":"Severity"
			},
			{
				"text":"libtpms",
				"category":"general",
				"title":"Affected Component"
			}
		],
		"publisher":{
			"issuing_authority":"openEuler security committee",
			"name":"openEuler",
			"namespace":"https://www.openeuler.org",
			"contact_details":"openeuler-security@openeuler.org",
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		"references":[
			{
				"summary":"openEuler-SA-2022-1959",
				"category":"self",
				"url":"https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1959"
			},
			{
				"summary":"CVE-2021-3505",
				"category":"self",
				"url":"https://www.openeuler.org/en/security/cve/detail?cveId=CVE-2021-3505&packageName=libtpms"
			},
			{
				"summary":"nvd cve",
				"category":"external",
				"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3505"
			},
			{
				"summary":"openEuler-SA-2022-1959 vex file",
				"category":"self",
				"url":"https://repo.openeuler.org/security/data/csaf/advisories/2022/csaf-openeuler-sa-2022-1959.json"
			}
		],
		"title":"An update for libtpms is now available for openEuler-20.03-LTS-SP1",
		"tracking":{
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			"revision_history":[
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					"summary":"Initial",
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				"date":"2024-10-31T09:46:17+08:00",
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				}
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			"current_release_date":"2024-10-31T09:46:17+08:00",
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			"notes":[
				{
					"text":"A flaw was found in libtpms in versions before 0.8.0. The TPM 2 implementation returns 2048 bit keys with ~1984 bit strength due to a bug in the TCG specification. The bug is in the key creation algorithm in RsaAdjustPrimeCandidate(), which is called before the prime number check. The highest threat from this vulnerability is to data confidentiality.",
					"category":"description",
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					"cvss_v3":{
						"baseSeverity":"MEDIUM",
						"baseScore":5.5,
						"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
						"version":"3.1"
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				{
					"details":"Medium",
					"category":"impact"
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			],
			"title":"CVE-2021-3505"
		}
	]
}