gsd-2019-11479
Vulnerability from gsd
Modified
2023-12-13 01:24
Details
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.
Aliases
Aliases
{
"GSD": {
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"https://www.debian.org/security/2019/dsa-4465",
"https://access.redhat.com/errata/RHSA-2019:1699",
"https://access.redhat.com/errata/RHSA-2019:1602",
"https://access.redhat.com/errata/RHSA-2019:1594",
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"https://access.redhat.com/errata/RHSA-2019:1489",
"https://access.redhat.com/errata/RHSA-2019:1488",
"https://access.redhat.com/errata/RHSA-2019:1487",
"https://access.redhat.com/errata/RHSA-2019:1486",
"https://access.redhat.com/errata/RHSA-2019:1485",
"https://access.redhat.com/errata/RHSA-2019:1484",
"https://access.redhat.com/errata/RHSA-2019:1483",
"https://access.redhat.com/errata/RHSA-2019:1482",
"https://access.redhat.com/errata/RHSA-2019:1481",
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"https://advisories.mageia.org/CVE-2019-11479.html",
"https://security.archlinux.org/CVE-2019-11479",
"https://alas.aws.amazon.com/cve/html/CVE-2019-11479.html",
"https://linux.oracle.com/cve/CVE-2019-11479.html"
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},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"confidentialityImpact": "NONE",
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"url": "https://www.us-cert.gov/ics/advisories/icsa-19-253-03"
},
{
"name": "https://support.f5.com/csp/article/K35421172?utm_source=f5support\u0026amp;utm_medium=RSS",
"refsource": "CONFIRM",
"tags": [
"Third Party Advisory"
],
"url": "https://support.f5.com/csp/article/K35421172?utm_source=f5support\u0026amp;utm_medium=RSS"
},
{
"name": "https://www.oracle.com/security-alerts/cpujan2020.html",
"refsource": "MISC",
"tags": [
"Third Party Advisory"
],
"url": "https://www.oracle.com/security-alerts/cpujan2020.html"
},
{
"name": "https://www.us-cert.gov/ics/advisories/icsma-20-170-06",
"refsource": "MISC",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "https://www.us-cert.gov/ics/advisories/icsma-20-170-06"
},
{
"name": "http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt",
"refsource": "CONFIRM",
"tags": [
"Third Party Advisory"
],
"url": "http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt"
},
{
"name": "https://www.oracle.com/security-alerts/cpuoct2020.html",
"refsource": "MISC",
"tags": [],
"url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
},
"lastModifiedDate": "2023-08-16T14:17Z",
"publishedDate": "2019-06-19T00:15Z"
}
}
}
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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.