gsd-2021-3638
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.
Aliases
Aliases
CVE-2021-3638


To clipboard 

{
   GSD: {
      alias: "CVE-2021-3638",
      description: "An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.",
      id: "GSD-2021-3638",
      references: [
         "https://www.suse.com/security/cve/CVE-2021-3638.html",
         "https://www.debian.org/security/2021/dsa-4980",
         "https://security.archlinux.org/CVE-2021-3638",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-3638",
         ],
         details: "An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.",
         id: "GSD-2021-3638",
         modified: "2023-12-13T01:23:34.942436Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "secalert@redhat.com",
            ID: "CVE-2021-3638",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "QEMU",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "=",
                                       version_value: "Affects qemu v4.0 to v6.1",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "n/a",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        cweId: "CWE-787",
                        lang: "eng",
                        value: "CWE-787 - Out-of-bounds Write",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://bugzilla.redhat.com/show_bug.cgi?id=1979858",
                  refsource: "MISC",
                  url: "https://bugzilla.redhat.com/show_bug.cgi?id=1979858",
               },
               {
                  name: "https://ubuntu.com/security/CVE-2021-3638",
                  refsource: "MISC",
                  url: "https://ubuntu.com/security/CVE-2021-3638",
               },
               {
                  name: "https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg01682.html",
                  refsource: "MISC",
                  url: "https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg01682.html",
               },
               {
                  name: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/",
                  refsource: "MISC",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/",
               },
               {
                  name: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/",
                  refsource: "MISC",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/",
               },
               {
                  name: "https://security.netapp.com/advisory/ntap-20220407-0003/",
                  refsource: "MISC",
                  url: "https://security.netapp.com/advisory/ntap-20220407-0003/",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndIncluding: "6.1.0",
                        versionStartIncluding: "4.0.0",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "secalert@redhat.com",
               ID: "CVE-2021-3638",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-787",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://bugzilla.redhat.com/show_bug.cgi?id=1979858",
                     refsource: "MISC",
                     tags: [
                        "Issue Tracking",
                        "Third Party Advisory",
                     ],
                     url: "https://bugzilla.redhat.com/show_bug.cgi?id=1979858",
                  },
                  {
                     name: "https://ubuntu.com/security/CVE-2021-3638",
                     refsource: "MISC",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://ubuntu.com/security/CVE-2021-3638",
                  },
                  {
                     name: "https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg01682.html",
                     refsource: "MISC",
                     tags: [
                        "Exploit",
                        "Mailing List",
                        "Patch",
                        "Third Party Advisory",
                     ],
                     url: "https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg01682.html",
                  },
                  {
                     name: "https://security.netapp.com/advisory/ntap-20220407-0003/",
                     refsource: "CONFIRM",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://security.netapp.com/advisory/ntap-20220407-0003/",
                  },
                  {
                     name: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/",
                     refsource: "MISC",
                     tags: [
                        "Mailing List",
                        "Third Party Advisory",
                     ],
                     url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/",
                  },
                  {
                     name: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/",
                     refsource: "MISC",
                     tags: [
                        "Mailing List",
                        "Third Party Advisory",
                     ],
                     url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "LOCAL",
                  authentication: "NONE",
                  availabilityImpact: "PARTIAL",
                  baseScore: 2.1,
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  vectorString: "AV:L/AC:L/Au:N/C:N/I:N/A:P",
                  version: "2.0",
               },
               exploitabilityScore: 3.9,
               impactScore: 2.9,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "LOW",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "LOCAL",
                  availabilityImpact: "HIGH",
                  baseScore: 6.5,
                  baseSeverity: "MEDIUM",
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  privilegesRequired: "LOW",
                  scope: "CHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 2,
               impactScore: 4,
            },
         },
         lastModifiedDate: "2023-02-23T20:23Z",
         publishedDate: "2022-03-03T23:15Z",
      },
   },
}


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