CVE-2023-50868
- Source
- https://cve.org/CVERecord?id=CVE-2023-50868
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-50868.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-50868
- Downstream
- Related
- Published
- 2024-02-14T16:15:45.377Z
- Modified
- 2026-02-03T21:46:12.637127Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.
- References
-
- https://access.redhat.com/security/cve/CVE-2023-50868
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
- https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1
- https://kb.isc.org/docs/cve-2023-50868
- https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html
- https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
- https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
- https://security.netapp.com/advisory/ntap-20240307-0008/
- https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html
- https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/
- http://www.openwall.com/lists/oss-security/2024/02/16/2
- http://www.openwall.com/lists/oss-security/2024/02/16/3
- https://bugzilla.suse.com/show_bug.cgi?id=1219826
- http://www.openwall.com/lists/oss-security/2024/02/16/2
- http://www.openwall.com/lists/oss-security/2024/02/16/3
- https://datatracker.ietf.org/doc/html/rfc5155
- https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html
- https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
- https://www.isc.org/blogs/2024-bind-security-release/
- https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html
- https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/
- https://www.isc.org/blogs/2024-bind-security-release/
Affected packages
Git / github.com/powerdns/pdns
Database specific
vanir_signatures
[
{
"signature_type": "Function",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/recursordist/pdns_recursor.cc",
"function": "startDoResolve"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-01ad9672",
"digest": {
"function_hash": "176603852840263732830139391620210804690",
"length": 34463.0
}
},
{
"signature_type": "Function",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/validate.cc",
"function": "getHashFromNSEC3"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-062c6153",
"digest": {
"function_hash": "328683417650457581262610117316356019712",
"length": 467.0
}
},
{
"signature_type": "Function",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/recursordist/test-aggressive_nsec_cc.cc",
"function": "BOOST_AUTO_TEST_CASE"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-083da8f0",
"digest": {
"function_hash": "268177118561092697802754434108238563121",
"length": 10176.0
}
},
{
"signature_type": "Line",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/validate.cc"
},
"source": "https://github.com/powerdns/pdns/commit/9a555d9e76e9078fccd7ac0d6cbfbd705be6ebfd",
"id": "CVE-2023-50868-174ac55f",
"digest": {
"line_hashes": [
"178585216212480525248623104818653715937",
"244737936592320707338235782141734478957",
"181618797184703273163915477809855533758",
"93902665501933052428645356920521658709",
"168331016405693708488023543812172760137",
"3708356298483242612528156700494594764",
"97757646064924305269552380043129698594",
"208960889785204028979000927507541654964",
"10561099345463757010908746648340728709",
"227633508454585325084060518169521423628",
"20998068797366467838744357289751747627",
"69286887233749009649609875757789428005",
"77364079539111044341949893033321840128",
"51714734026829429060540732931841784486",
"192470104648473850419094843585153221734",
"257184729416116647967731583745227611037"
],
"threshold": 0.9
}
},
{
"signature_type": "Function",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/recursordist/syncres.cc",
"function": "SyncRes::getDenialValidationState"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-23f5e7df",
"digest": {
"function_hash": "262751570089449406613714219673951643147",
"length": 290.0
}
},
{
"signature_type": "Function",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/recursordist/test-aggressive_nsec_cc.cc",
"function": "BOOST_AUTO_TEST_CASE"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-2fc494bd",
"digest": {
"function_hash": "201938902450456507711023241083204283972",
"length": 5591.0
}
},
{
"signature_type": "Function",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/recursordist/syncres.cc",
"function": "SyncRes::processRecords"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-3c5a92a3",
"digest": {
"function_hash": "144101148251292812822552147187507497875",
"length": 11682.0
}
},
{
"signature_type": "Line",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/validate.hh"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-414ba439",
"digest": {
"line_hashes": [
"283636783499077570517813125236252646019",
"98266169053211755979039492142575993438",
"250947794110650215206031762890533684888",
"273954655690166753894626883533981751593",
"73726588199350004522212905320741653902",
"321222656114111067507416717600502490492",
"328630740970879266407118420545856431396",
"286967201821778203456072662417434278429",
"78116158558059304740440951749559527375",
"194453506980586597666080264600372909720",
"226097889647176429605412780612139180131",
"161597350340195228803871972530034321654",
"119330673594504515656791741674592244629",
"8012198587593013369055707900455100945",
"234675403124050851403760597048832890879",
"97217041581231381839158334622209692665",
"29375028603819005624729860355530740164",
"299410751161550586046008453476178135542",
"7650350519648180865815400437868342838",
"289552933774569700452496213726043645312",
"251829755293248410306948943939744933459",
"77782627734506595061411460754907020087",
"213736894569745813792402668015928549774"
],
"threshold": 0.9
}
},
{
"signature_type": "Line",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/recursordist/test-syncres_cc.cc"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-4409c549",
"digest": {
"line_hashes": [
"87135926578870222010674378874118747340",
"57237258143884138168031569137615708949",
"168461804457156753010524234273864158193",
"333781539962980151031688851714367449452",
"248997609182751456264268001406217488608",
"375846118695418710349235673965876457",
"260750681673814841162777881510868397449",
"325546304966651325849141354975180289871",
"87191481485116227879508978461358465236",
"197510784055604967521119576049700988890",
"35966383391382691446327381186172787493",
"1095629290931655923258011813549850652",
"175684298924600111707053975788013528771",
"114560696756230579582284906095129327469",
"86960333169574558170223401574326656572",
"339438312363768547709214868614686250775",
"218541082475426600873928620660191718162",
"265366429000470787763328292240101270071"
],
"threshold": 0.9
}
},
{
"signature_type": "Line",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/recursordist/syncres.cc"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-4c29b156",
"digest": {
"line_hashes": [
"303172823824496942998020999070784303492",
"310704801643282397821671912773267860478",
"244379074811327291654505096020027983248",
"139574511854997902478593415519311718607",
"226226314769662449127586198286712419474",
"288952089262852733402759641981525499322",
"759459097383481547015260297861705663",
"205496660579841531930461645595439352051",
"1281654340080255912635957987431691035",
"153506063110400025445235910708910231423",
"282411448783880003618976957002119648023",
"126780183499446213740215087613348045806",
"4839949982636909795247002058824704197",
"118631047276839637417887626243977692404",
"137441373856506857666291269773712511356",
"267577596158856569120247741241654371639",
"38856170364456553027589492230200036627",
"288310433387704514581803779898688168704",
"279030657697132023103014735958904475874",
"142299643817515063738423219451764552031",
"302997400899961716345652485027567489093",
"46145510563845823158399988578783331687",
"312757879743987143364353714930406275786",
"47424972529039776680801325920847678055",
"243498932651160365280532997903641973809",
"254371924771995138144102716271595074088",
"227561236021377124055149093121935918953",
"187134193853804674360711903215486643579",
"258244018291424588451986939727040618585",
"173590339126518515989730211868688877661",
"116993296216213543169008162665027499836",
"32316546056093695773044325009344286235"
],
"threshold": 0.9
}
},
{
"signature_type": "Function",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/recursordist/test-syncres_cc4.cc",
"function": "BOOST_AUTO_TEST_CASE"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-51e31370",
"digest": {
"function_hash": "229870441724590464242116841971660093910",
"length": 749.0
}
},
{
"signature_type": "Line",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/recursordist/rec-main.cc"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-5ab3d10b",
"digest": {
"line_hashes": [
"246213548880317645612913511255347835183",
"198374657106381340169110710115547197954",
"91868372081301139743214068101352155925",
"115137409519189682566735732303704895177",
"162630731079304860905670236604370396068",
"144644469415681443399759493463913537070",
"279908175447236100861164916986558219629",
"302887937523186454808721734107851983345",
"304020558253582119346454637327085703377",
"339052181644511518129372936231488195327",
"163543489994443188769962985265091862596"
],
"threshold": 0.9
}
},
{
"signature_type": "Function",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/recursordist/test-syncres_cc8.cc",
"function": "BOOST_AUTO_TEST_CASE"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-5b1806eb",
"digest": {
"function_hash": "221775800049246800404753763829073871238",
"length": 991.0
}
},
{
"signature_type": "Line",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/recursordist/aggressive_nsec.hh"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-5c068d48",
"digest": {
"line_hashes": [
"162938783574694680727024178420058089812",
"260599855360161378545296441298751526342",
"156521715007057728317678794513222189073",
"97103136073270255607193919302641049150",
"15875314859418743949017234812959119770",
"48042005653955568767190065232582158319",
"208108342002259745228355775600252474911",
"77413834573207562103757067503508076577",
"205572938443260837538761358302661706991",
"235923284411608242724844275450425753129",
"93899516907767730347799814568389905562",
"72237180526432311217820168642278848416",
"330084750757011742482191554265641112698",
"151241109245307331342044520374316995236",
"166074808795112268289282205059186010803",
"53428928837036742669226142315001531232"
],
"threshold": 0.9
}
},
{
"signature_type": "Line",
"signature_version": "v1",
"deprecated": false,
"target": {
"file": "pdns/validate.cc"
},
"source": "https://github.com/powerdns/pdns/commit/8cb2740c8468d48047cf40870e6373bdce833c60",
"id": "CVE-2023-50868-66376c7f",
"digest": {
"line_hashes": [
"79832725603263281824728207423819500381",
"136121121042443266599155984307365798908",
"7579429987190451805432887903850970330",
"212249461779489199242153785382604250482",
"109135895489821893190822885462097002932",
"205764383618134148702322740275221308775",
"160139286514190820315366545328689110505",
"275658527447075066297641346986203960674",
"266003216984682914422202940842970906320",
"310639213050687006369565092295106798800",
"18508322807146590547591311625654730272",
"268264061665704776921747713077906250940",
"302025683003793777518538891089196012390",
"195846652566903960357073705707854514839",
"177490979312243118906625739592851181680",
"114265547855935992197529665247454500802",
"262039726917717339518946285753822746936",
"206023621223120607416232147109117862254",
"103650588088613241728818342607454579140",
"16564560907030384868081020515038713308",
"173081965138356895495227319823365317633",
"145614393292984484520271648722765650711",
"233930975746745500104174947153545810693",
"161633777375112697037517743828136045049",
"285246389320182263628072766415093869798",
"88974341026863663772985816526521547265",
"7707443559821053226990086009612035633",
"304789561999694047764487224290975956545",
"227528441169284845339973036663776584323",
"38403018990307283882016701293103029960",
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]
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-50868.json"
Git / gitlab.isc.org/isc-projects/bind9
Affected ranges
- Type
- GIT
- Repo
- https://gitlab.isc.org/isc-projects/bind9
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixed