{
	"document":{
		"aggregate_severity":{
			"namespace":"https://nvd.nist.gov/vuln-metrics/cvss",
			"text":"High"
		},
		"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":"bind security update",
				"category":"general",
				"title":"Synopsis"
			},
			{
				"text":"An update for bind is now available for openEuler-22.03-LTS-SP2.",
				"category":"general",
				"title":"Summary"
			},
			{
				"text":"BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols.\n\nSecurity Fix(es):\n\nEvery `named` instance configured to run as a recursive resolver maintains a cache database holding the responses to the queries it has recently sent to authoritative servers. The size limit for that cache database can be configured using the `max-cache-size` statement in the configuration file; it defaults to 90% of the total amount of memory available on the host. When the size of the cache reaches 7/8 of the configured limit, a cache-cleaning algorithm starts to remove expired and/or least-recently used RRsets from the cache, to keep memory use below the configured limit.\n\nIt has been discovered that the effectiveness of the cache-cleaning algorithm used in `named` can be severely diminished by querying the resolver for specific RRsets in a certain order, effectively allowing the configured `max-cache-size` limit to be significantly exceeded.\nThis issue affects BIND 9 versions 9.11.0 through 9.16.41, 9.18.0 through 9.18.15, 9.19.0 through 9.19.13, 9.11.3-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.(CVE-2023-2828)",
				"category":"general",
				"title":"Description"
			},
			{
				"text":"An update for bind is now available for openEuler-22.03-LTS-SP2.\n\nopenEuler Security has rated this update as having a security impact of high. 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":"High",
				"category":"general",
				"title":"Severity"
			},
			{
				"text":"bind",
				"category":"general",
				"title":"Affected Component"
			}
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			"name":"openEuler",
			"namespace":"https://www.openeuler.org",
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			{
				"summary":"openEuler-SA-2023-1505",
				"category":"self",
				"url":"https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1505"
			},
			{
				"summary":"CVE-2023-2828",
				"category":"self",
				"url":"https://www.openeuler.org/en/security/cve/detail?cveId=CVE-2023-2828&packageName=bind"
			},
			{
				"summary":"nvd cve",
				"category":"external",
				"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-2828"
			},
			{
				"summary":"openEuler-SA-2023-1505 vex file",
				"category":"self",
				"url":"https://repo.openeuler.org/security/data/csaf/advisories/2023/csaf-openeuler-sa-2023-1505.json"
			}
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		"title":"An update for bind is now available for openEuler-22.03-LTS-SP2",
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					"summary":"Initial",
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					"text":"Every `named` instance configured to run as a recursive resolver maintains a cache database holding the responses to the queries it has recently sent to authoritative servers. The size limit for that cache database can be configured using the `max-cache-size` statement in the configuration file; it defaults to 90% of the total amount of memory available on the host. When the size of the cache reaches 7/8 of the configured limit, a cache-cleaning algorithm starts to remove expired and/or least-recently used RRsets from the cache, to keep memory use below the configured limit.It has been discovered that the effectiveness of the cache-cleaning algorithm used in `named` can be severely diminished by querying the resolver for specific RRsets in a certain order, effectively allowing the configured `max-cache-size` limit to be significantly exceeded.This issue affects BIND 9 versions 9.11.0 through 9.16.41, 9.18.0 through 9.18.15, 9.19.0 through 9.19.13, 9.11.3-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.",
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						"openEuler-22.03-LTS-SP2:bind-utils-9.16.23-18.oe2203sp2.x86_64",
						"openEuler-22.03-LTS-SP2:bind-chroot-9.16.23-18.oe2203sp2.x86_64",
						"openEuler-22.03-LTS-SP2:bind-debuginfo-9.16.23-18.oe2203sp2.x86_64",
						"openEuler-22.03-LTS-SP2:bind-pkcs11-libs-9.16.23-18.oe2203sp2.x86_64",
						"openEuler-22.03-LTS-SP2:bind-libs-9.16.23-18.oe2203sp2.x86_64",
						"openEuler-22.03-LTS-SP2:bind-pkcs11-9.16.23-18.oe2203sp2.x86_64",
						"openEuler-22.03-LTS-SP2:bind-pkcs11-devel-9.16.23-18.oe2203sp2.x86_64",
						"openEuler-22.03-LTS-SP2:bind-9.16.23-18.oe2203sp2.x86_64",
						"openEuler-22.03-LTS-SP2:bind-pkcs11-utils-9.16.23-18.oe2203sp2.x86_64",
						"openEuler-22.03-LTS-SP2:bind-devel-9.16.23-18.oe2203sp2.x86_64",
						"openEuler-22.03-LTS-SP2:bind-debugsource-9.16.23-18.oe2203sp2.x86_64",
						"openEuler-22.03-LTS-SP2:bind-dnssec-utils-9.16.23-18.oe2203sp2.x86_64"
					]
				}
			],
			"threats":[
				{
					"details":"High",
					"category":"impact"
				}
			],
			"title":"CVE-2023-2828"
		}
	]
}