fkie_cve-2024-39494
Vulnerability from fkie_nvd
Published
2024-07-12 13:15
Modified
2025-03-13 13:15
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry's dname.name ->d_name.name can change on rename and the earlier value can be freed; there are conditions sufficient to stabilize it (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusive on the parent's inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0b31e28fbd773aefb6164687e0767319b8199829
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/480afcbeb7aaaa22677d3dd48ec590b441eaac1a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233dePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/edf287bc610b18d7a9c0c0c1cb2e97b9348c71bb
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233dePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8cPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "11DA4D7A-BB0A-4555-8D1D-ECCC5108F772",
                     versionEndExcluding: "6.1.97",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "6F019D15-84C0-416B-8C57-7F51B68992F0",
                     versionEndExcluding: "6.6.35",
                     versionStartIncluding: "6.2",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "0ABBBA1D-F79D-4BDB-AA41-D1EDCC4A6975",
                     versionEndExcluding: "6.9.6",
                     versionStartIncluding: "6.7",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "In the Linux kernel, the following vulnerability has been resolved:\n\nima: Fix use-after-free on a dentry's dname.name\n\n->d_name.name can change on rename and the earlier value can be freed;\nthere are conditions sufficient to stabilize it (->d_lock on dentry,\n->d_lock on its parent, ->i_rwsem exclusive on the parent's inode,\nrename_lock), but none of those are met at any of the sites. Take a stable\nsnapshot of the name instead.",
      },
      {
         lang: "es",
         value: "En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ima: corrige el use-after-free en dentry dname.name ->d_name.name puede cambiar al cambiar el nombre y el valor anterior se puede liberar; existen condiciones suficientes para estabilizarlo (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusivo en el inodo del padre, rename_lock), pero ninguna de ellas se cumple en ninguno de los sitios. En su lugar, tome una instantánea estable del nombre.",
      },
   ],
   id: "CVE-2024-39494",
   lastModified: "2025-03-13T13:15:40.680",
   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: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2024-07-12T13:15:12.113",
   references: [
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/0b31e28fbd773aefb6164687e0767319b8199829",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/480afcbeb7aaaa22677d3dd48ec590b441eaac1a",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208c",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233de",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8c",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/edf287bc610b18d7a9c0c0c1cb2e97b9348c71bb",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208c",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233de",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Patch",
         ],
         url: "https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8c",
      },
   ],
   sourceIdentifier: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-416",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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