CVE-2021-38165
Vulnerability from cvelistv5
Published
2021-08-07 17:33
Modified
2024-08-04 01:37
Severity ?
EPSS score ?
Summary
Lynx through 2.8.9 mishandles the userinfo subcomponent of a URI, which allows remote attackers to discover cleartext credentials because they may appear in SNI data.
References
{ containers: { adp: [ { providerMetadata: { dateUpdated: "2024-08-04T01:37:16.277Z", orgId: "af854a3a-2127-422b-91ae-364da2661108", shortName: "CVE", }, references: [ { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://bugs.debian.org/991971", }, { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://www.openwall.com/lists/oss-security/2021/08/07/1", }, { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://lynx.invisible-island.net/current/CHANGES.html", }, { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://github.com/w3c/libwww/blob/f010b4cc58d32f34b162f0084fe093f7097a61f0/Library/src/HTParse.c#L118", }, { name: "[oss-security] 20210807 Re: Bug#991971: [Lynx-dev] bug in Lynx' SSL certificate validation -> leaks password in clear text via SNI (under some circumstances)", tags: [ "mailing-list", "x_refsource_MLIST", "x_transferred", ], url: "http://www.openwall.com/lists/oss-security/2021/08/07/9", }, { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://www.openwall.com/lists/oss-security/2021/08/07/11", }, { name: "[oss-security] 20210807 Re: Re: Bug#991971: [Lynx-dev] bug in Lynx' SSL certificate validation -> leaks password in clear text via SNI (under some circumstances)", tags: [ "mailing-list", "x_refsource_MLIST", "x_transferred", ], url: "http://www.openwall.com/lists/oss-security/2021/08/07/12", }, { name: "[oss-security] 20210807 Re: Re: Bug#991971: [Lynx-dev] bug in Lynx' SSL certificate validation -> leaks password in clear text via SNI (under some circumstances)", tags: [ "mailing-list", "x_refsource_MLIST", "x_transferred", ], url: "http://www.openwall.com/lists/oss-security/2021/08/07/11", }, { name: "[debian-lts-announce] 20210809 [SECURITY] [DLA 2736-1] lynx security update", tags: [ "mailing-list", "x_refsource_MLIST", "x_transferred", ], url: "https://lists.debian.org/debian-lts-announce/2021/08/msg00010.html", }, { name: "DSA-4953", tags: [ "vendor-advisory", "x_refsource_DEBIAN", "x_transferred", ], url: "https://www.debian.org/security/2021/dsa-4953", }, { name: "FEDORA-2021-f59bda7d94", tags: [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred", ], url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VKNK7GQBJBUBMJVNKVC7RTCYWUYMFJQW/", }, { name: "FEDORA-2021-232161e4d5", tags: [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred", ], url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K6PZF7JNTFCOJ62HXZG4Q2NEHSZ6IO2V/", }, { name: "FEDORA-2021-57287bd052", tags: [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred", ], url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7YMUHFJJWTZ6HBHTYXVDPNZINGGURHDW/", }, ], title: "CVE Program Container", }, ], cna: { affected: [ { product: "n/a", vendor: "n/a", versions: [ { status: "affected", version: "n/a", }, ], }, ], descriptions: [ { lang: "en", value: "Lynx through 2.8.9 mishandles the userinfo subcomponent of a URI, which allows remote attackers to discover cleartext credentials because they may appear in SNI data.", }, ], problemTypes: [ { descriptions: [ { description: "n/a", lang: "en", type: "text", }, ], }, ], providerMetadata: { dateUpdated: "2021-09-24T22:06:18", orgId: "8254265b-2729-46b6-b9e3-3dfca2d5bfca", shortName: "mitre", }, references: [ { tags: [ "x_refsource_MISC", ], url: "https://bugs.debian.org/991971", }, { tags: [ "x_refsource_MISC", ], url: "https://www.openwall.com/lists/oss-security/2021/08/07/1", }, { tags: [ "x_refsource_MISC", ], url: "https://lynx.invisible-island.net/current/CHANGES.html", }, { tags: [ "x_refsource_MISC", ], url: "https://github.com/w3c/libwww/blob/f010b4cc58d32f34b162f0084fe093f7097a61f0/Library/src/HTParse.c#L118", }, { name: "[oss-security] 20210807 Re: Bug#991971: [Lynx-dev] bug in Lynx' SSL certificate validation -> leaks password in clear text via SNI (under some circumstances)", tags: [ "mailing-list", "x_refsource_MLIST", ], url: "http://www.openwall.com/lists/oss-security/2021/08/07/9", }, { tags: [ "x_refsource_MISC", ], url: "https://www.openwall.com/lists/oss-security/2021/08/07/11", }, { name: "[oss-security] 20210807 Re: Re: Bug#991971: [Lynx-dev] bug in Lynx' SSL certificate validation -> leaks password in clear text via SNI (under some circumstances)", tags: [ "mailing-list", "x_refsource_MLIST", ], url: "http://www.openwall.com/lists/oss-security/2021/08/07/12", }, { name: "[oss-security] 20210807 Re: Re: Bug#991971: [Lynx-dev] bug in Lynx' SSL certificate validation -> leaks password in clear text via SNI (under some circumstances)", tags: [ "mailing-list", "x_refsource_MLIST", ], url: "http://www.openwall.com/lists/oss-security/2021/08/07/11", }, { name: "[debian-lts-announce] 20210809 [SECURITY] [DLA 2736-1] lynx security update", tags: [ "mailing-list", "x_refsource_MLIST", ], url: "https://lists.debian.org/debian-lts-announce/2021/08/msg00010.html", }, { name: "DSA-4953", tags: [ "vendor-advisory", "x_refsource_DEBIAN", ], url: "https://www.debian.org/security/2021/dsa-4953", }, { name: "FEDORA-2021-f59bda7d94", tags: [ "vendor-advisory", "x_refsource_FEDORA", ], url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VKNK7GQBJBUBMJVNKVC7RTCYWUYMFJQW/", }, { name: "FEDORA-2021-232161e4d5", tags: [ "vendor-advisory", "x_refsource_FEDORA", ], url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K6PZF7JNTFCOJ62HXZG4Q2NEHSZ6IO2V/", }, { name: "FEDORA-2021-57287bd052", tags: [ "vendor-advisory", "x_refsource_FEDORA", ], url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7YMUHFJJWTZ6HBHTYXVDPNZINGGURHDW/", }, ], x_legacyV4Record: { CVE_data_meta: { ASSIGNER: "cve@mitre.org", ID: "CVE-2021-38165", STATE: "PUBLIC", }, affects: { vendor: { vendor_data: [ { product: { product_data: [ { product_name: "n/a", version: { version_data: [ { version_value: "n/a", }, ], }, }, ], }, vendor_name: "n/a", }, ], }, }, data_format: "MITRE", data_type: "CVE", data_version: "4.0", description: { description_data: [ { lang: "eng", value: "Lynx through 2.8.9 mishandles the userinfo subcomponent of a URI, which allows remote attackers to discover cleartext credentials because they may appear in SNI data.", }, ], }, problemtype: { problemtype_data: [ { description: [ { lang: "eng", value: "n/a", }, ], }, ], }, references: { reference_data: [ { name: "https://bugs.debian.org/991971", refsource: "MISC", url: "https://bugs.debian.org/991971", }, { name: "https://www.openwall.com/lists/oss-security/2021/08/07/1", refsource: "MISC", url: "https://www.openwall.com/lists/oss-security/2021/08/07/1", }, { name: "https://lynx.invisible-island.net/current/CHANGES.html", refsource: "MISC", url: "https://lynx.invisible-island.net/current/CHANGES.html", }, { name: "https://github.com/w3c/libwww/blob/f010b4cc58d32f34b162f0084fe093f7097a61f0/Library/src/HTParse.c#L118", refsource: "MISC", url: "https://github.com/w3c/libwww/blob/f010b4cc58d32f34b162f0084fe093f7097a61f0/Library/src/HTParse.c#L118", }, { name: "[oss-security] 20210807 Re: Bug#991971: [Lynx-dev] bug in Lynx' SSL certificate validation -> leaks password in clear text via SNI (under some circumstances)", refsource: "MLIST", url: "http://www.openwall.com/lists/oss-security/2021/08/07/9", }, { name: "https://www.openwall.com/lists/oss-security/2021/08/07/11", refsource: "MISC", url: "https://www.openwall.com/lists/oss-security/2021/08/07/11", }, { name: "[oss-security] 20210807 Re: Re: Bug#991971: [Lynx-dev] bug in Lynx' SSL certificate validation -> leaks password in clear text via SNI (under some circumstances)", refsource: "MLIST", url: "http://www.openwall.com/lists/oss-security/2021/08/07/12", }, { name: "[oss-security] 20210807 Re: Re: Bug#991971: [Lynx-dev] bug in Lynx' SSL certificate validation -> leaks password in clear text via SNI (under some circumstances)", refsource: "MLIST", url: "http://www.openwall.com/lists/oss-security/2021/08/07/11", }, { name: "[debian-lts-announce] 20210809 [SECURITY] [DLA 2736-1] lynx security update", refsource: "MLIST", url: "https://lists.debian.org/debian-lts-announce/2021/08/msg00010.html", }, { name: "DSA-4953", refsource: "DEBIAN", url: "https://www.debian.org/security/2021/dsa-4953", }, { name: "FEDORA-2021-f59bda7d94", refsource: "FEDORA", url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VKNK7GQBJBUBMJVNKVC7RTCYWUYMFJQW/", }, { name: "FEDORA-2021-232161e4d5", refsource: "FEDORA", url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K6PZF7JNTFCOJ62HXZG4Q2NEHSZ6IO2V/", }, { name: "FEDORA-2021-57287bd052", refsource: "FEDORA", url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7YMUHFJJWTZ6HBHTYXVDPNZINGGURHDW/", }, ], }, }, }, }, cveMetadata: { assignerOrgId: "8254265b-2729-46b6-b9e3-3dfca2d5bfca", assignerShortName: "mitre", cveId: "CVE-2021-38165", datePublished: "2021-08-07T17:33:54", dateReserved: "2021-08-07T00:00:00", dateUpdated: "2024-08-04T01:37:16.277Z", state: "PUBLISHED", }, dataType: "CVE_RECORD", dataVersion: "5.1", "vulnerability-lookup:meta": { nvd: "{\"cve\":{\"id\":\"CVE-2021-38165\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2021-08-07T18:15:06.997\",\"lastModified\":\"2024-11-21T06:16:32.203\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Lynx through 2.8.9 mishandles the userinfo subcomponent of a URI, which allows remote attackers to discover cleartext credentials because they may appear in SNI data.\"},{\"lang\":\"es\",\"value\":\"HTParse en Lynx versiones hasta 2.8.9, maneja inapropiadamente el subcomponente userinfo de un URI, que permite a atacantes remotos descubrir credenciales en texto sin cifrar porque pueden aparecer en los datos SNI o en los encabezados HTTP\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.6,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:H/Au:N/C:P/I:N/A:N\",\"baseScore\":2.6,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"HIGH\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":4.9,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-522\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:lynx_project:lynx:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.8.9\",\"matchCriteriaId\":\"AE64C4B3-51EF-4FA4-AA1F-4BA372D43CCB\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DEECE5FC-CACF-4496-A3E7-164736409252\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E460AA51-FCDA-46B9-AE97-E6676AA5E194\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A930E247-0B43-43CB-98FF-6CE7B8189835\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"80E516C0-98A4-4ADE-B69F-66A772E2BAAA\"}]}]}],\"references\":[{\"url\":\"http://www.openwall.com/lists/oss-security/2021/08/07/11\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing 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Sightings
Author | Source | Type | Date |
---|
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.