github - ghsa-8mhp-pmjg-f6cw

ghsa-8mhp-pmjg-f6cw

Vulnerability from github

Published

2024-02-27 09:31

Modified

2024-04-10 15:30

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:

netfilter: nftables: clone set element expression template

memcpy() breaks when using connlimit in set elements. Use nft_expr_clone() to initialize the connlimit expression list, otherwise connlimit garbage collector crashes when walking on the list head copy.

[ 493.064656] Workqueue: events_power_efficient nft_rhash_gc [nf_tables] [ 493.064685] RIP: 0010:find_or_evict+0x5a/0x90 [nf_conncount] [ 493.064694] Code: 2b 43 40 83 f8 01 77 0d 48 c7 c0 f5 ff ff ff 44 39 63 3c 75 df 83 6d 18 01 48 8b 43 08 48 89 de 48 8b 13 48 8b 3d ee 2f 00 00 <48> 89 42 08 48 89 10 48 b8 00 01 00 00 00 00 ad de 48 89 03 48 83 [ 493.064699] RSP: 0018:ffffc90000417dc0 EFLAGS: 00010297 [ 493.064704] RAX: 0000000000000000 RBX: ffff888134f38410 RCX: 0000000000000000 [ 493.064708] RDX: 0000000000000000 RSI: ffff888134f38410 RDI: ffff888100060cc0 [ 493.064711] RBP: ffff88812ce594a8 R08: ffff888134f38438 R09: 00000000ebb9025c [ 493.064714] R10: ffffffff8219f838 R11: 0000000000000017 R12: 0000000000000001 [ 493.064718] R13: ffffffff82146740 R14: ffff888134f38410 R15: 0000000000000000 [ 493.064721] FS: 0000000000000000(0000) GS:ffff88840e440000(0000) knlGS:0000000000000000 [ 493.064725] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 493.064729] CR2: 0000000000000008 CR3: 00000001330aa002 CR4: 00000000001706e0 [ 493.064733] Call Trace: [ 493.064737] nf_conncount_gc_list+0x8f/0x150 [nf_conncount] [ 493.064746] nft_rhash_gc+0x106/0x390 [nf_tables]

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{
  "affected": [],
  "aliases": [
    "CVE-2021-46913"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-27T07:15:07Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nftables: clone set element expression template\n\nmemcpy() breaks when using connlimit in set elements. Use\nnft_expr_clone() to initialize the connlimit expression list, otherwise\nconnlimit garbage collector crashes when walking on the list head copy.\n\n[  493.064656] Workqueue: events_power_efficient nft_rhash_gc [nf_tables]\n[  493.064685] RIP: 0010:find_or_evict+0x5a/0x90 [nf_conncount]\n[  493.064694] Code: 2b 43 40 83 f8 01 77 0d 48 c7 c0 f5 ff ff ff 44 39 63 3c 75 df 83 6d 18 01 48 8b 43 08 48 89 de 48 8b 13 48 8b 3d ee 2f 00 00 \u003c48\u003e 89 42 08 48 89 10 48 b8 00 01 00 00 00 00 ad de 48 89 03 48 83\n[  493.064699] RSP: 0018:ffffc90000417dc0 EFLAGS: 00010297\n[  493.064704] RAX: 0000000000000000 RBX: ffff888134f38410 RCX: 0000000000000000\n[  493.064708] RDX: 0000000000000000 RSI: ffff888134f38410 RDI: ffff888100060cc0\n[  493.064711] RBP: ffff88812ce594a8 R08: ffff888134f38438 R09: 00000000ebb9025c\n[  493.064714] R10: ffffffff8219f838 R11: 0000000000000017 R12: 0000000000000001\n[  493.064718] R13: ffffffff82146740 R14: ffff888134f38410 R15: 0000000000000000\n[  493.064721] FS:  0000000000000000(0000) GS:ffff88840e440000(0000) knlGS:0000000000000000\n[  493.064725] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  493.064729] CR2: 0000000000000008 CR3: 00000001330aa002 CR4: 00000000001706e0\n[  493.064733] Call Trace:\n[  493.064737]  nf_conncount_gc_list+0x8f/0x150 [nf_conncount]\n[  493.064746]  nft_rhash_gc+0x106/0x390 [nf_tables]",
  "id": "GHSA-8mhp-pmjg-f6cw",
  "modified": "2024-04-10T15:30:31Z",
  "published": "2024-02-27T09:31:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46913"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47d8de3c226574a3ddb8b87d0c152028d1bafef4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d8f9065830e526c83199186c5f56a6514f457d2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e51ff3ffc316377cca21de8b80404eed0c37b3c3"
    }
  ],
  "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-2021-46913

Vulnerability from cvelistv5

Published

2024-02-27 06:53

Modified

2024-11-04 11:55

Severity ?

Summary

netfilter: nftables: clone set element expression template

References

▼	URL	Tags
	https://git.kernel.org/stable/c/e51ff3ffc316377cca21de8b80404eed0c37b3c3
	https://git.kernel.org/stable/c/47d8de3c226574a3ddb8b87d0c152028d1bafef4
	https://git.kernel.org/stable/c/4d8f9065830e526c83199186c5f56a6514f457d2

Impacted products

Vendor

Product

Version

▼

Linux

Version: 409444522976
Version: 409444522976
Version: 409444522976

Linux

Version: 5.7

Show details on NVD website

JSON

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    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-46913",
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                  {
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                "role": "CISA Coordinator",
                "timestamp": "2024-07-25T16:05:03.441249Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "dateUpdated": "2024-08-04T05:17:42.990Z",
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            "url": "https://git.kernel.org/stable/c/47d8de3c226574a3ddb8b87d0c152028d1bafef4"
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            "tags": [
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            "url": "https://git.kernel.org/stable/c/4d8f9065830e526c83199186c5f56a6514f457d2"
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        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
      "affected": [
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          "product": "Linux",
          "programFiles": [
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          "vendor": "Linux",
          "versions": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nftables: clone set element expression template\n\nmemcpy() breaks when using connlimit in set elements. Use\nnft_expr_clone() to initialize the connlimit expression list, otherwise\nconnlimit garbage collector crashes when walking on the list head copy.\n\n[  493.064656] Workqueue: events_power_efficient nft_rhash_gc [nf_tables]\n[  493.064685] RIP: 0010:find_or_evict+0x5a/0x90 [nf_conncount]\n[  493.064694] Code: 2b 43 40 83 f8 01 77 0d 48 c7 c0 f5 ff ff ff 44 39 63 3c 75 df 83 6d 18 01 48 8b 43 08 48 89 de 48 8b 13 48 8b 3d ee 2f 00 00 \u003c48\u003e 89 42 08 48 89 10 48 b8 00 01 00 00 00 00 ad de 48 89 03 48 83\n[  493.064699] RSP: 0018:ffffc90000417dc0 EFLAGS: 00010297\n[  493.064704] RAX: 0000000000000000 RBX: ffff888134f38410 RCX: 0000000000000000\n[  493.064708] RDX: 0000000000000000 RSI: ffff888134f38410 RDI: ffff888100060cc0\n[  493.064711] RBP: ffff88812ce594a8 R08: ffff888134f38438 R09: 00000000ebb9025c\n[  493.064714] R10: ffffffff8219f838 R11: 0000000000000017 R12: 0000000000000001\n[  493.064718] R13: ffffffff82146740 R14: ffff888134f38410 R15: 0000000000000000\n[  493.064721] FS:  0000000000000000(0000) GS:ffff88840e440000(0000) knlGS:0000000000000000\n[  493.064725] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  493.064729] CR2: 0000000000000008 CR3: 00000001330aa002 CR4: 00000000001706e0\n[  493.064733] Call Trace:\n[  493.064737]  nf_conncount_gc_list+0x8f/0x150 [nf_conncount]\n[  493.064746]  nft_rhash_gc+0x106/0x390 [nf_tables]"
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      "title": "netfilter: nftables: clone set element expression template",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-46913",
    "datePublished": "2024-02-27T06:53:52.780Z",
    "dateReserved": "2024-02-25T13:45:52.718Z",
    "dateUpdated": "2024-11-04T11:55:45.726Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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