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		"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/"
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		"lang":"en",
		"notes":[
			{
				"text":"ed25519-java security update",
				"category":"general",
				"title":"Synopsis"
			},
			{
				"text":"An update for ed25519-java is now available for openEuler-22.03-LTS-SP3,openEuler-22.03-LTS-SP4,openEuler-24.03-LTS,openEuler-24.03-LTS-SP1,openEuler-20.03-LTS-SP4",
				"category":"general",
				"title":"Summary"
			},
			{
				"text":"This is an implementation of EdDSA in Java. Structurally, it is based on the ref10 implementation in SUPERCOP (see http://ed25519.cr.yp.to/software.html). There are two internal implementations: * A port of the radix-2^51 operations in ref10   - fast and constant-time, but only useful for Ed25519. * A generic version using BigIntegers for calculation   - a bit slower and not constant-time, but compatible     with any EdDSA parameter specification.\n\nSecurity Fix(es):\n\nThe implementation of EdDSA in EdDSA-Java (aka ed25519-java) through 0.3.0 exhibits signature malleability and does not satisfy the SUF-CMA (Strong Existential Unforgeability under Chosen Message Attacks) property. This allows attackers to create new valid signatures different from previous signatures for a known message.(CVE-2020-36843)",
				"category":"general",
				"title":"Description"
			},
			{
				"text":"An update for ed25519-java is now available for master/openEuler-20.03-LTS-SP4/openEuler-22.03-LTS-SP3/openEuler-22.03-LTS-SP4/openEuler-24.03-LTS/openEuler-24.03-LTS-Next/openEuler-24.03-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":"ed25519-java",
				"category":"general",
				"title":"Affected Component"
			}
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			"name":"openEuler",
			"namespace":"https://www.openeuler.org",
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			{
				"summary":"openEuler-SA-2025-1334",
				"category":"self",
				"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1334"
			},
			{
				"summary":"CVE-2020-36843",
				"category":"self",
				"url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2020-36843&packageName=ed25519-java"
			},
			{
				"summary":"nvd cve",
				"category":"external",
				"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36843"
			},
			{
				"summary":"openEuler-SA-2025-1334 vex file",
				"category":"self",
				"url":"https://repo.openeuler.org/security/data/csaf/advisories/2025/csaf-openeuler-sa-2025-1334.json"
			}
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		"title":"An update for ed25519-java is now available for openEuler-22.03-LTS-SP3,openEuler-22.03-LTS-SP4,openEuler-24.03-LTS,openEuler-24.03-LTS-SP1,openEuler-20.03-LTS-SP4",
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			"current_release_date":"2025-03-29T14:31:48+08:00",
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	"vulnerabilities":[
		{
			"cve":"CVE-2020-36843",
			"notes":[
				{
					"text":"The implementation of EdDSA in EdDSA-Java (aka ed25519-java) through 0.3.0 exhibits signature malleability and does not satisfy the SUF-CMA (Strong Existential Unforgeability under Chosen Message Attacks) property. This allows attackers to create new valid signatures different from previous signatures for a known message.",
					"category":"description",
					"title":"Vulnerability Description"
				}
			],
			"product_status":{
				"fixed":[
					"openEuler-22.03-LTS-SP3:ed25519-java-0.3.0-5.oe2203sp3.noarch",
					"openEuler-22.03-LTS-SP3:ed25519-java-javadoc-0.3.0-5.oe2203sp3.noarch",
					"openEuler-22.03-LTS-SP4:ed25519-java-0.3.0-5.oe2203sp4.noarch",
					"openEuler-22.03-LTS-SP4:ed25519-java-javadoc-0.3.0-5.oe2203sp4.noarch",
					"openEuler-24.03-LTS:ed25519-java-0.3.0-5.oe2403.noarch",
					"openEuler-24.03-LTS:ed25519-java-javadoc-0.3.0-5.oe2403.noarch",
					"openEuler-24.03-LTS-SP1:ed25519-java-0.3.0-5.oe2403sp1.noarch",
					"openEuler-24.03-LTS-SP1:ed25519-java-javadoc-0.3.0-5.oe2403sp1.noarch",
					"openEuler-20.03-LTS-SP4:ed25519-java-0.3.0-5.oe2003sp4.noarch",
					"openEuler-20.03-LTS-SP4:ed25519-java-javadoc-0.3.0-5.oe2003sp4.noarch",
					"openEuler-22.03-LTS-SP3:ed25519-java-0.3.0-5.oe2203sp3.src",
					"openEuler-22.03-LTS-SP4:ed25519-java-0.3.0-5.oe2203sp4.src",
					"openEuler-24.03-LTS:ed25519-java-0.3.0-5.oe2403.src",
					"openEuler-24.03-LTS-SP1:ed25519-java-0.3.0-5.oe2403sp1.src",
					"openEuler-20.03-LTS-SP4:ed25519-java-0.3.0-5.oe2003sp4.src"
				]
			},
			"remediations":[
				{
					"product_ids":[
						"openEuler-22.03-LTS-SP3:ed25519-java-0.3.0-5.oe2203sp3.noarch",
						"openEuler-22.03-LTS-SP3:ed25519-java-javadoc-0.3.0-5.oe2203sp3.noarch",
						"openEuler-22.03-LTS-SP4:ed25519-java-0.3.0-5.oe2203sp4.noarch",
						"openEuler-22.03-LTS-SP4:ed25519-java-javadoc-0.3.0-5.oe2203sp4.noarch",
						"openEuler-24.03-LTS:ed25519-java-0.3.0-5.oe2403.noarch",
						"openEuler-24.03-LTS:ed25519-java-javadoc-0.3.0-5.oe2403.noarch",
						"openEuler-24.03-LTS-SP1:ed25519-java-0.3.0-5.oe2403sp1.noarch",
						"openEuler-24.03-LTS-SP1:ed25519-java-javadoc-0.3.0-5.oe2403sp1.noarch",
						"openEuler-20.03-LTS-SP4:ed25519-java-0.3.0-5.oe2003sp4.noarch",
						"openEuler-20.03-LTS-SP4:ed25519-java-javadoc-0.3.0-5.oe2003sp4.noarch",
						"openEuler-22.03-LTS-SP3:ed25519-java-0.3.0-5.oe2203sp3.src",
						"openEuler-22.03-LTS-SP4:ed25519-java-0.3.0-5.oe2203sp4.src",
						"openEuler-24.03-LTS:ed25519-java-0.3.0-5.oe2403.src",
						"openEuler-24.03-LTS-SP1:ed25519-java-0.3.0-5.oe2403sp1.src",
						"openEuler-20.03-LTS-SP4:ed25519-java-0.3.0-5.oe2003sp4.src"
					],
					"details":"ed25519-java security update",
					"category":"vendor_fix",
					"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1334"
				}
			],
			"scores":[
				{
					"cvss_v3":{
						"baseSeverity":"MEDIUM",
						"baseScore":4.3,
						"vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
						"version":"3.1"
					},
					"products":[
						"openEuler-22.03-LTS-SP3:ed25519-java-0.3.0-5.oe2203sp3.noarch",
						"openEuler-22.03-LTS-SP3:ed25519-java-javadoc-0.3.0-5.oe2203sp3.noarch",
						"openEuler-22.03-LTS-SP4:ed25519-java-0.3.0-5.oe2203sp4.noarch",
						"openEuler-22.03-LTS-SP4:ed25519-java-javadoc-0.3.0-5.oe2203sp4.noarch",
						"openEuler-24.03-LTS:ed25519-java-0.3.0-5.oe2403.noarch",
						"openEuler-24.03-LTS:ed25519-java-javadoc-0.3.0-5.oe2403.noarch",
						"openEuler-24.03-LTS-SP1:ed25519-java-0.3.0-5.oe2403sp1.noarch",
						"openEuler-24.03-LTS-SP1:ed25519-java-javadoc-0.3.0-5.oe2403sp1.noarch",
						"openEuler-20.03-LTS-SP4:ed25519-java-0.3.0-5.oe2003sp4.noarch",
						"openEuler-20.03-LTS-SP4:ed25519-java-javadoc-0.3.0-5.oe2003sp4.noarch",
						"openEuler-22.03-LTS-SP3:ed25519-java-0.3.0-5.oe2203sp3.src",
						"openEuler-22.03-LTS-SP4:ed25519-java-0.3.0-5.oe2203sp4.src",
						"openEuler-24.03-LTS:ed25519-java-0.3.0-5.oe2403.src",
						"openEuler-24.03-LTS-SP1:ed25519-java-0.3.0-5.oe2403sp1.src",
						"openEuler-20.03-LTS-SP4:ed25519-java-0.3.0-5.oe2003sp4.src"
					]
				}
			],
			"threats":[
				{
					"details":"Medium",
					"category":"impact"
				}
			],
			"title":"CVE-2020-36843"
		}
	]
}