cvelist/2019/11xxx/CVE-2019-11479.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security@ubuntu.com",
        "DATE_PUBLIC": "2019-06-17T00:00:00.000Z",
        "ID": "CVE-2019-11479",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux kernel",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "4.4",
                                            "version_value": "4.4.182"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "4.9",
                                            "version_value": "4.9.182"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "4.14",
                                            "version_value": "4.14.127"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "4.19",
                                            "version_value": "4.19.52"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "5.1",
                                            "version_value": "5.1.11"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Linux"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Jonathan Looney from Netflix"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commits 967c05aee439e6e5d7d805e195b3a20ef5c433d6 and 5f3e2bf008c2221478101ee72f5cb4654b9fc363."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.7"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-405 Asymmetric Resource Consumption (Amplification)"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md",
                "name": "https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md"
            },
            {
                "refsource": "MISC",
                "url": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic",
                "name": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic"
            },
            {
                "refsource": "MISC",
                "url": "https://access.redhat.com/security/vulnerabilities/tcpsack",
                "name": "https://access.redhat.com/security/vulnerabilities/tcpsack"
            },
            {
                "refsource": "MISC",
                "url": "https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=5f3e2bf008c2221478101ee72f5cb4654b9fc363",
                "name": "https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=5f3e2bf008c2221478101ee72f5cb4654b9fc363"
            },
            {
                "refsource": "MISC",
                "url": "https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=967c05aee439e6e5d7d805e195b3a20ef5c433d6",
                "name": "https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=967c05aee439e6e5d7d805e195b3a20ef5c433d6"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://support.f5.com/csp/article/K35421172",
                "url": "https://support.f5.com/csp/article/K35421172"
            }
        ]
    },
    "source": {
        "defect": [
            "https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1832286"
        ],
        "discovery": "UNKNOWN"
    }
}