github - ghsa-jj48-3v62-2vf9

ghsa-jj48-3v62-2vf9

Vulnerability from github

Published

2024-03-03 00:30

Modified

2024-11-01 18:31

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

In the Linux kernel, the following vulnerability has been resolved:

x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()

The code calling ima_free_kexec_buffer() runs long after the memblock allocator has already been torn down, potentially resulting in a use after free in memblock_isolate_range().

With KASAN or KFENCE, this use after free will result in a BUG from the idle task, and a subsequent kernel panic.

Switch ima_free_kexec_buffer() over to memblock_free_late() to avoid that bug.

Show details on source website

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{
   affected: [],
   aliases: [
      "CVE-2023-52576",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-416",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-03-02T22:15:49Z",
      severity: "MODERATE",
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()\n\nThe code calling ima_free_kexec_buffer() runs long after the memblock\nallocator has already been torn down, potentially resulting in a use\nafter free in memblock_isolate_range().\n\nWith KASAN or KFENCE, this use after free will result in a BUG\nfrom the idle task, and a subsequent kernel panic.\n\nSwitch ima_free_kexec_buffer() over to memblock_free_late() to avoid\nthat bug.",
   id: "GHSA-jj48-3v62-2vf9",
   modified: "2024-11-01T18:31:25Z",
   published: "2024-03-03T00:30:32Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2023-52576",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
}

cve-2023-52576

Vulnerability from cvelistv5

Published

2024-03-02 21:59

Modified

2024-12-19 08:21

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer() The code calling ima_free_kexec_buffer() runs long after the memblock allocator has already been torn down, potentially resulting in a use after free in memblock_isolate_range(). With KASAN or KFENCE, this use after free will result in a BUG from the idle task, and a subsequent kernel panic. Switch ima_free_kexec_buffer() over to memblock_free_late() to avoid that bug.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b
	https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204
	https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b

Impacted products

Vendor

Product

Version

▼

Linux

Version: fee3ff99bc67604fba77f19da0106f3ec52b1956
Version: fee3ff99bc67604fba77f19da0106f3ec52b1956
Version: fee3ff99bc67604fba77f19da0106f3ec52b1956

Linux

Version: 5.13

Show details on NVD website

JSON

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{
   containers: {
      adp: [
         {
            metrics: [
               {
                  cvssV3_1: {
                     attackComplexity: "LOW",
                     attackVector: "LOCAL",
                     availabilityImpact: "HIGH",
                     baseScore: 5.5,
                     baseSeverity: "MEDIUM",
                     confidentialityImpact: "NONE",
                     integrityImpact: "NONE",
                     privilegesRequired: "LOW",
                     scope: "UNCHANGED",
                     userInteraction: "NONE",
                     vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                     version: "3.1",
                  },
               },
               {
                  other: {
                     content: {
                        id: "CVE-2023-52576",
                        options: [
                           {
                              Exploitation: "none",
                           },
                           {
                              Automatable: "no",
                           },
                           {
                              "Technical Impact": "partial",
                           },
                        ],
                        role: "CISA Coordinator",
                        timestamp: "2024-07-24T14:52:41.445700Z",
                        version: "2.0.3",
                     },
                     type: "ssvc",
                  },
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            ],
            problemTypes: [
               {
                  descriptions: [
                     {
                        cweId: "CWE-416",
                        description: "CWE-416 Use After Free",
                        lang: "en",
                        type: "CWE",
                     },
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            ],
            providerMetadata: {
               dateUpdated: "2024-11-01T15:52:22.842Z",
               orgId: "134c704f-9b21-4f2e-91b3-4a467353bcc0",
               shortName: "CISA-ADP",
            },
            title: "CISA ADP Vulnrichment",
         },
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            ],
            title: "CVE Program Container",
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      ],
      cna: {
         affected: [
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               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
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               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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               defaultStatus: "affected",
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         descriptions: [
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               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()\n\nThe code calling ima_free_kexec_buffer() runs long after the memblock\nallocator has already been torn down, potentially resulting in a use\nafter free in memblock_isolate_range().\n\nWith KASAN or KFENCE, this use after free will result in a BUG\nfrom the idle task, and a subsequent kernel panic.\n\nSwitch ima_free_kexec_buffer() over to memblock_free_late() to avoid\nthat bug.",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T08:21:56.680Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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         title: "x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2023-52576",
      datePublished: "2024-03-02T21:59:44.545Z",
      dateReserved: "2024-03-02T21:55:42.568Z",
      dateUpdated: "2024-12-19T08:21:56.680Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
}

All sightings related to this event Export sightings related to this event

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.

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