github - ghsa-ffg6-3wfr-47xc

ghsa-ffg6-3wfr-47xc

Vulnerability from github

Published

2024-03-25 09:32

Modified

2024-03-25 09:32

Details

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

mptcp: fix data stream corruption

Maxim reported several issues when forcing a TCP transparent proxy to use the MPTCP protocol for the inbound connections. He also provided a clean reproducer.

The problem boils down to 'mptcp_frag_can_collapse_to()' assuming that only MPTCP will use the given page_frag.

If others - e.g. the plain TCP protocol - allocate page fragments, we can end-up re-using already allocated memory for mptcp_data_frag.

Fix the issue ensuring that the to-be-expanded data fragment is located at the current page frag end.

v1 -> v2: - added missing fixes tag (Mat)

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47152"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-25T09:15:09Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix data stream corruption\n\nMaxim reported several issues when forcing a TCP transparent proxy\nto use the MPTCP protocol for the inbound connections. He also\nprovided a clean reproducer.\n\nThe problem boils down to \u0027mptcp_frag_can_collapse_to()\u0027 assuming\nthat only MPTCP will use the given page_frag.\n\nIf others - e.g. the plain TCP protocol - allocate page fragments,\nwe can end-up re-using already allocated memory for mptcp_data_frag.\n\nFix the issue ensuring that the to-be-expanded data fragment is\nlocated at the current page frag end.\n\nv1 -\u003e v2:\n - added missing fixes tag (Mat)",
  "id": "GHSA-ffg6-3wfr-47xc",
  "modified": "2024-03-25T09:32:35Z",
  "published": "2024-03-25T09:32:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47152"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18e7f0580da15cac1e79d73683ada5a9e70980f8"
    },
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    },
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}

cve-2021-47152

Vulnerability from cvelistv5

Published

2024-03-25 09:07

Modified

2024-12-19 07:36

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix data stream corruption Maxim reported several issues when forcing a TCP transparent proxy to use the MPTCP protocol for the inbound connections. He also provided a clean reproducer. The problem boils down to 'mptcp_frag_can_collapse_to()' assuming that only MPTCP will use the given page_frag. If others - e.g. the plain TCP protocol - allocate page fragments, we can end-up re-using already allocated memory for mptcp_data_frag. Fix the issue ensuring that the to-be-expanded data fragment is located at the current page frag end. v1 -> v2: - added missing fixes tag (Mat)

References

▼	URL	Tags
	https://git.kernel.org/stable/c/3267a061096efc91eda52c2a0c61ba76e46e4b34
	https://git.kernel.org/stable/c/18e7f0580da15cac1e79d73683ada5a9e70980f8
	https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154

Impacted products

Vendor

Product

Version

▼

Linux

Version: 18b683bff89d46ace55f12d00c0440d44d6160c4
Version: 18b683bff89d46ace55f12d00c0440d44d6160c4
Version: 18b683bff89d46ace55f12d00c0440d44d6160c4

Linux

Version: 5.7

Show details on NVD website

JSON

To clipboard

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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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