fkie_cve-2022-3910
Vulnerability from fkie_nvd
Published
2022-11-22 13:15
Modified
2024-11-21 07:20
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation. When io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately. We recommend upgrading past commit https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679
References
cve-coordination@google.comhttps://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679Patch, Third Party Advisory
cve-coordination@google.comhttps://kernel.dance/#fc7222c3a9f56271fba02aabbfbae999042f1679Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://kernel.dance/#fc7222c3a9f56271fba02aabbfbae999042f1679Patch, Third Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.0
linux linux_kernel 6.0
linux linux_kernel 6.0
linux linux_kernel 6.0
linux linux_kernel 6.0


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "DC7F6228-4E87-46E2-8CD8-A8439BC31E81",
                     versionEndExcluding: "5.19.11",
                     versionStartIncluding: "5.18",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*",
                     matchCriteriaId: "E8BD11A3-8643-49B6-BADE-5029A0117325",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*",
                     matchCriteriaId: "5F0AD220-F6A9-4012-8636-155F1B841FAD",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*",
                     matchCriteriaId: "A46498B3-78E1-4623-AAE1-94D29A42BE4E",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*",
                     matchCriteriaId: "F8446E87-F5F6-41CA-8201-BAE0F0CA6DD9",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:*",
                     matchCriteriaId: "8E5FB72F-67CE-43CC-83FE-541604D98182",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation.\nWhen io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately.\n\nWe recommend upgrading past commit  https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 \n",
      },
      {
         lang: "es",
         value: "La vulnerabilidad de Use After Free en el kernel de Linux permite la escalada de privilegios. Una actualización incorrecta del recuento de referencias en io_uring conduce a un use-after-free y escalada de privilegios locales. Cuando se invocó io_msg_ring con un archivo fijo, llamó a io_fput_file(), lo que disminuyó incorrectamente su recuento de referencias (lo que llevó a Use-After-Free y Escalada de privilegios locales). Los archivos fijos están registrados permanentemente en el anillo y no deben colocarse por separado. Recomendamos actualizar el commit anteriorhttps://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 ",
      },
   ],
   id: "CVE-2022-3910",
   lastModified: "2024-11-21T07:20:30.850",
   metrics: {
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "LOCAL",
               availabilityImpact: "HIGH",
               baseScore: 7.8,
               baseSeverity: "HIGH",
               confidentialityImpact: "HIGH",
               integrityImpact: "HIGH",
               privilegesRequired: "LOW",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
               version: "3.1",
            },
            exploitabilityScore: 1.8,
            impactScore: 5.9,
            source: "cve-coordination@google.com",
            type: "Secondary",
         },
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "LOCAL",
               availabilityImpact: "HIGH",
               baseScore: 7.8,
               baseSeverity: "HIGH",
               confidentialityImpact: "HIGH",
               integrityImpact: "HIGH",
               privilegesRequired: "LOW",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
               version: "3.1",
            },
            exploitabilityScore: 1.8,
            impactScore: 5.9,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2022-11-22T13:15:13.167",
   references: [
      {
         source: "cve-coordination@google.com",
         tags: [
            "Patch",
            "Third Party Advisory",
         ],
         url: "https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679",
      },
      {
         source: "cve-coordination@google.com",
         tags: [
            "Patch",
            "Third Party Advisory",
         ],
         url: "https://kernel.dance/#fc7222c3a9f56271fba02aabbfbae999042f1679",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Patch",
            "Third Party Advisory",
         ],
         url: "https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Patch",
            "Third Party Advisory",
         ],
         url: "https://kernel.dance/#fc7222c3a9f56271fba02aabbfbae999042f1679",
      },
   ],
   sourceIdentifier: "cve-coordination@google.com",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-416",
            },
         ],
         source: "cve-coordination@google.com",
         type: "Secondary",
      },
      {
         description: [
            {
               lang: "en",
               value: "NVD-CWE-Other",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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