gsd-2020-36694
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
An issue was discovered in netfilter in the Linux kernel before 5.10. There can be a use-after-free in the packet processing context, because the per-CPU sequence count is mishandled during concurrent iptables rules replacement. This could be exploited with the CAP_NET_ADMIN capability in an unprivileged namespace. NOTE: cc00bca was reverted in 5.12.
Aliases
Aliases
CVE-2020-36694


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-36694",
    "id": "GSD-2020-36694"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-36694"
      ],
      "details": "An issue was discovered in netfilter in the Linux kernel before 5.10. There can be a use-after-free in the packet processing context, because the per-CPU sequence count is mishandled during concurrent iptables rules replacement. This could be exploited with the CAP_NET_ADMIN capability in an unprivileged namespace. NOTE: cc00bca was reverted in 5.12.",
      "id": "GSD-2020-36694",
      "modified": "2023-12-13T01:21:55.535371Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
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        "ID": "CVE-2020-36694",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
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              "vendor_name": "n/a"
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          }
        ]
      },
      "problemtype": {
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                "value": "n/a"
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10",
            "refsource": "MISC",
            "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10"
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          },
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            "name": "https://syzkaller.appspot.com/bug?id=0c4fd9c6aa04ec116d01e915d3b186f71a212cb2",
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            "refsource": "MISC",
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          },
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            "name": "https://security.netapp.com/advisory/ntap-20230622-0005/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20230622-0005/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "5.10",
                "vulnerable": true
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            ],
            "operator": "OR"
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      "cve": {
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        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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                  "value": "CWE-416"
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        },
        "references": {
          "reference_data": [
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              "name": "https://syzkaller.appspot.com/bug?id=0c4fd9c6aa04ec116d01e915d3b186f71a212cb2",
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              "tags": [
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                "Third Party Advisory"
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            {
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              "refsource": "MISC",
              "tags": [
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                "Patch"
              ],
              "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc00bcaa589914096edef7fb87ca5cee4a166b5c"
            },
            {
              "name": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12",
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              "name": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10",
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      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 0.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-06-22T15:15Z",
      "publishedDate": "2023-05-21T23:15Z"
    }
  }
}


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