CVE-2021-28041
Vulnerability from cvelistv5
Published
2021-03-05 19:07
Modified
2024-08-03 21:33
Severity ?
EPSS score ?
0.27% (0.68143)
Summary
ssh-agent in OpenSSH before 8.5 has a double free that may be relevant in a few less-common scenarios, such as unconstrained agent-socket access on a legacy operating system, or the forwarding of an agent to an attacker-controlled host.
References
cve@mitre.orghttps://github.com/openssh/openssh-portable/commit/e04fd6dde16de1cdc5a4d9946397ff60d96568dbPatch, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQWGII3LQR4AOTPPFXGMTYE7UDEWIUKI/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXST2CML2MWY3PNVUXX7FFJE3ATJMNVZ/
cve@mitre.orghttps://security.gentoo.org/glsa/202105-35Third Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20210416-0002/Third Party Advisory
cve@mitre.orghttps://www.openssh.com/security.htmlNot Applicable, Vendor Advisory
cve@mitre.orghttps://www.openssh.com/txt/release-8.5Release Notes, Vendor Advisory
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2021/03/03/1Mailing List, Patch, Third Party Advisory
cve@mitre.orghttps://www.oracle.com//security-alerts/cpujul2021.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/openssh/openssh-portable/commit/e04fd6dde16de1cdc5a4d9946397ff60d96568dbPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQWGII3LQR4AOTPPFXGMTYE7UDEWIUKI/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXST2CML2MWY3PNVUXX7FFJE3ATJMNVZ/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202105-35Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210416-0002/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openssh.com/security.htmlNot Applicable, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openssh.com/txt/release-8.5Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2021/03/03/1Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com//security-alerts/cpujul2021.htmlThird Party Advisory
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website


{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-03T21:33:17.327Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
               shortName: "CVE",
            },
            references: [
               {
                  tags: [
                     "x_refsource_MISC",
                     "x_transferred",
                  ],
                  url: "https://www.openssh.com/security.html",
               },
               {
                  tags: [
                     "x_refsource_MISC",
                     "x_transferred",
                  ],
                  url: "https://www.openwall.com/lists/oss-security/2021/03/03/1",
               },
               {
                  tags: [
                     "x_refsource_MISC",
                     "x_transferred",
                  ],
                  url: "https://github.com/openssh/openssh-portable/commit/e04fd6dde16de1cdc5a4d9946397ff60d96568db",
               },
               {
                  tags: [
                     "x_refsource_MISC",
                     "x_transferred",
                  ],
                  url: "https://www.openssh.com/txt/release-8.5",
               },
               {
                  name: "FEDORA-2021-f68a5a75ba",
                  tags: [
                     "vendor-advisory",
                     "x_refsource_FEDORA",
                     "x_transferred",
                  ],
                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXST2CML2MWY3PNVUXX7FFJE3ATJMNVZ/",
               },
               {
                  name: "GLSA-202105-35",
                  tags: [
                     "vendor-advisory",
                     "x_refsource_GENTOO",
                     "x_transferred",
                  ],
                  url: "https://security.gentoo.org/glsa/202105-35",
               },
               {
                  name: "FEDORA-2021-1d3698089d",
                  tags: [
                     "vendor-advisory",
                     "x_refsource_FEDORA",
                     "x_transferred",
                  ],
                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQWGII3LQR4AOTPPFXGMTYE7UDEWIUKI/",
               },
               {
                  tags: [
                     "x_refsource_MISC",
                     "x_transferred",
                  ],
                  url: "https://www.oracle.com//security-alerts/cpujul2021.html",
               },
               {
                  tags: [
                     "x_refsource_CONFIRM",
                     "x_transferred",
                  ],
                  url: "https://security.netapp.com/advisory/ntap-20210416-0002/",
               },
            ],
            title: "CVE Program Container",
         },
      ],
      cna: {
         affected: [
            {
               product: "n/a",
               vendor: "n/a",
               versions: [
                  {
                     status: "affected",
                     version: "n/a",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "ssh-agent in OpenSSH before 8.5 has a double free that may be relevant in a few less-common scenarios, such as unconstrained agent-socket access on a legacy operating system, or the forwarding of an agent to an attacker-controlled host.",
            },
         ],
         problemTypes: [
            {
               descriptions: [
                  {
                     description: "n/a",
                     lang: "en",
                     type: "text",
                  },
               ],
            },
         ],
         providerMetadata: {
            dateUpdated: "2021-07-20T22:56:32",
            orgId: "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
            shortName: "mitre",
         },
         references: [
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://www.openssh.com/security.html",
            },
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://www.openwall.com/lists/oss-security/2021/03/03/1",
            },
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://github.com/openssh/openssh-portable/commit/e04fd6dde16de1cdc5a4d9946397ff60d96568db",
            },
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://www.openssh.com/txt/release-8.5",
            },
            {
               name: "FEDORA-2021-f68a5a75ba",
               tags: [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
               ],
               url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXST2CML2MWY3PNVUXX7FFJE3ATJMNVZ/",
            },
            {
               name: "GLSA-202105-35",
               tags: [
                  "vendor-advisory",
                  "x_refsource_GENTOO",
               ],
               url: "https://security.gentoo.org/glsa/202105-35",
            },
            {
               name: "FEDORA-2021-1d3698089d",
               tags: [
                  "vendor-advisory",
                  "x_refsource_FEDORA",
               ],
               url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQWGII3LQR4AOTPPFXGMTYE7UDEWIUKI/",
            },
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://www.oracle.com//security-alerts/cpujul2021.html",
            },
            {
               tags: [
                  "x_refsource_CONFIRM",
               ],
               url: "https://security.netapp.com/advisory/ntap-20210416-0002/",
            },
         ],
         x_legacyV4Record: {
            CVE_data_meta: {
               ASSIGNER: "cve@mitre.org",
               ID: "CVE-2021-28041",
               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: "ssh-agent in OpenSSH before 8.5 has a double free that may be relevant in a few less-common scenarios, such as unconstrained agent-socket access on a legacy operating system, or the forwarding of an agent to an attacker-controlled host.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "eng",
                           value: "n/a",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://www.openssh.com/security.html",
                     refsource: "MISC",
                     url: "https://www.openssh.com/security.html",
                  },
                  {
                     name: "https://www.openwall.com/lists/oss-security/2021/03/03/1",
                     refsource: "MISC",
                     url: "https://www.openwall.com/lists/oss-security/2021/03/03/1",
                  },
                  {
                     name: "https://github.com/openssh/openssh-portable/commit/e04fd6dde16de1cdc5a4d9946397ff60d96568db",
                     refsource: "MISC",
                     url: "https://github.com/openssh/openssh-portable/commit/e04fd6dde16de1cdc5a4d9946397ff60d96568db",
                  },
                  {
                     name: "https://www.openssh.com/txt/release-8.5",
                     refsource: "MISC",
                     url: "https://www.openssh.com/txt/release-8.5",
                  },
                  {
                     name: "FEDORA-2021-f68a5a75ba",
                     refsource: "FEDORA",
                     url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TXST2CML2MWY3PNVUXX7FFJE3ATJMNVZ/",
                  },
                  {
                     name: "GLSA-202105-35",
                     refsource: "GENTOO",
                     url: "https://security.gentoo.org/glsa/202105-35",
                  },
                  {
                     name: "FEDORA-2021-1d3698089d",
                     refsource: "FEDORA",
                     url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KQWGII3LQR4AOTPPFXGMTYE7UDEWIUKI/",
                  },
                  {
                     name: "https://www.oracle.com//security-alerts/cpujul2021.html",
                     refsource: "MISC",
                     url: "https://www.oracle.com//security-alerts/cpujul2021.html",
                  },
                  {
                     name: "https://security.netapp.com/advisory/ntap-20210416-0002/",
                     refsource: "CONFIRM",
                     url: "https://security.netapp.com/advisory/ntap-20210416-0002/",
                  },
               ],
            },
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
      assignerShortName: "mitre",
      cveId: "CVE-2021-28041",
      datePublished: "2021-03-05T19:07:34",
      dateReserved: "2021-03-05T00:00:00",
      dateUpdated: "2024-08-03T21:33:17.327Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2021-28041\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2021-03-05T21:15:13.200\",\"lastModified\":\"2024-11-21T05:59:01.940\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"ssh-agent in OpenSSH before 8.5 has a double free that may be relevant in a few less-common scenarios, such as unconstrained agent-socket access on a legacy operating system, or the forwarding of an agent to an attacker-controlled host.\"},{\"lang\":\"es\",\"value\":\"ssh-agent en OpenSSH versiones anteriores a 8.5, presenta una doble liberación que puede ser relevante en algunos escenarios menos comunes, como el acceso sin restricciones al socket del agente en un sistema operativo heredado o el reenvío de un agente a un host controlado por el atacante\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.2,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:H/Au:S/C:P/I:P/A:P\",\"baseScore\":4.6,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"HIGH\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.9,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-415\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"8.2\",\"versionEndExcluding\":\"8.5\",\"matchCriteriaId\":\"7974AA7F-3FC7-437C-80C4-8581BC18F883\"}]}]},{\"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\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5C2089EE-5D7F-47EC-8EA5-0F69790564C4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A3C19813-E823-456A-B1CE-EC0684CE1953\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A6E9EF0C-AFA8-4F7B-9FDC-1E0F7C26E737\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:hci_compute_node_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F921BC85-568E-4B69-A3CD-CF75C76672F1\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AD7447BC-F315-4298-A822-549942FC118B\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:netapp:hci_storage_node_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4BC4299D-05D3-4875-BC79-C3DC02C88ECE\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:netapp:hci_storage_node:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"02DEB4FB-A21D-4CB1-B522-EEE5093E8521\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"49ACFC73-A509-4D1C-8FC3-F68F495AB055\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:oracle:zfs_storage_appliance:8.8:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"18096778-19E1-434F-BD96-A9FBF11A8C81\"}]}]}],\"references\":[{\"url\":\"https://github.com/openssh/openssh-portable/commit/e04fd6dde16de1cdc5a4d9946397ff60d96568db\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQWGII3LQR4AOTPPFXGMTYE7UDEWIUKI/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXST2CML2MWY3PNVUXX7FFJE3ATJMNVZ/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://security.gentoo.org/glsa/202105-35\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210416-0002/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.openssh.com/security.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Not Applicable\",\"Vendor Advisory\"]},{\"url\":\"https://www.openssh.com/txt/release-8.5\",\"source\":\"cve@mitre.org\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://www.openwall.com/lists/oss-security/2021/03/03/1\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com//security-alerts/cpujul2021.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/openssh/openssh-portable/commit/e04fd6dde16de1cdc5a4d9946397ff60d96568db\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQWGII3LQR4AOTPPFXGMTYE7UDEWIUKI/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXST2CML2MWY3PNVUXX7FFJE3ATJMNVZ/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.gentoo.org/glsa/202105-35\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210416-0002/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.openssh.com/security.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Not Applicable\",\"Vendor Advisory\"]},{\"url\":\"https://www.openssh.com/txt/release-8.5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://www.openwall.com/lists/oss-security/2021/03/03/1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com//security-alerts/cpujul2021.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
   },
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.