github - ghsa-9hfm-p748-vm54

ghsa-9hfm-p748-vm54

Vulnerability from github

Published

2024-06-19 15:30

Modified

2024-11-01 15:31

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:

mptcp: remove tcp ulp setsockopt support

TCP_ULP setsockopt cannot be used for mptcp because its already used internally to plumb subflow (tcp) sockets to the mptcp layer.

syzbot managed to trigger a crash for mptcp connections that are in fallback mode:

KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] CPU: 1 PID: 1083 Comm: syz-executor.3 Not tainted 5.16.0-rc2-syzkaller #0 RIP: 0010:tls_build_proto net/tls/tls_main.c:776 [inline] [..] __tcp_set_ulp net/ipv4/tcp_ulp.c:139 [inline] tcp_set_ulp+0x428/0x4c0 net/ipv4/tcp_ulp.c:160 do_tcp_setsockopt+0x455/0x37c0 net/ipv4/tcp.c:3391 mptcp_setsockopt+0x1b47/0x2400 net/mptcp/sockopt.c:638

Remove support for TCP_ULP setsockopt.

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47591"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-19T15:15:53Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: remove tcp ulp setsockopt support\n\nTCP_ULP setsockopt cannot be used for mptcp because its already\nused internally to plumb subflow (tcp) sockets to the mptcp layer.\n\nsyzbot managed to trigger a crash for mptcp connections that are\nin fallback mode:\n\nKASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]\nCPU: 1 PID: 1083 Comm: syz-executor.3 Not tainted 5.16.0-rc2-syzkaller #0\nRIP: 0010:tls_build_proto net/tls/tls_main.c:776 [inline]\n[..]\n __tcp_set_ulp net/ipv4/tcp_ulp.c:139 [inline]\n tcp_set_ulp+0x428/0x4c0 net/ipv4/tcp_ulp.c:160\n do_tcp_setsockopt+0x455/0x37c0 net/ipv4/tcp.c:3391\n mptcp_setsockopt+0x1b47/0x2400 net/mptcp/sockopt.c:638\n\nRemove support for TCP_ULP setsockopt.",
  "id": "GHSA-9hfm-p748-vm54",
  "modified": "2024-11-01T15:31:46Z",
  "published": "2024-06-19T15:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47591"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3de0c86d42f841d1d64f316cd949e65c566f0734"
    },
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  "schema_version": "1.4.0",
  "severity": [
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      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-47591

Vulnerability from cvelistv5

Published

2024-06-19 14:53

Modified

2024-11-04 12:08

Severity ?

Summary

mptcp: remove tcp ulp setsockopt support

References

▼	URL	Tags
	https://git.kernel.org/stable/c/3de0c86d42f841d1d64f316cd949e65c566f0734
	https://git.kernel.org/stable/c/404cd9a22150f24acf23a8df2ad0c094ba379f57

Impacted products

Vendor

Product

Version

▼

Linux

Version: d9e4c1291810
Version: d9e4c1291810

Linux

Version: 5.13

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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