CVE-2019-11479 (GCVE-0-2019-11479)

Vulnerability from cvelistv5 – Published: 2019-06-18 23:34 – Updated: 2024-09-16 23:22
VLAI?
Summary
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.
Severity ?
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
http://www.securityfocus.com/bid/108818 vdb-entryx_refsource_BID
https://www.kb.cert.org/vuls/id/905115 third-party-advisoryx_refsource_CERT-VN
https://access.redhat.com/errata/RHSA-2019:1594 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:1602 vendor-advisoryx_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2019/06/28/2 mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4041-2/ vendor-advisoryx_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2019/07/06/3 mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2019/07/06/4 mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2019:1699 vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/4041-1/ vendor-advisoryx_refsource_UBUNTU
https://www.oracle.com/security-alerts/cpujan2020.html x_refsource_MISC
https://www.oracle.com/security-alerts/cpuoct2020.html x_refsource_MISC
https://github.com/Netflix/security-bulletins/blo… x_refsource_MISC
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBas… x_refsource_MISC
https://access.redhat.com/security/vulnerabilitie… x_refsource_MISC
https://kb.pulsesecure.net/articles/Pulse_Securit… x_refsource_CONFIRM
https://www.synology.com/security/advisory/Synolo… x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2019062… x_refsource_CONFIRM
https://kc.mcafee.com/corporate/index?page=conten… x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/s… x_refsource_CONFIRM
https://www.us-cert.gov/ics/advisories/icsa-19-253-03 x_refsource_MISC
http://www.arubanetworks.com/assets/alert/ARUBA-P… x_refsource_CONFIRM
https://git.kernel.org/pub/scm/linux/kernel/git/d… x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/d… x_refsource_MISC
https://support.f5.com/csp/article/K35421172 x_refsource_CONFIRM
https://psirt.global.sonicwall.com/vuln-detail/SN… x_refsource_CONFIRM
https://support.f5.com/csp/article/K35421172?utm_… x_refsource_CONFIRM
https://www.us-cert.gov/ics/advisories/icsma-20-170-06 x_refsource_MISC
Impacted products
Vendor Product Version
Linux Linux kernel Affected: 4.4 , < 4.4.182 (custom)
Affected: 4.9 , < 4.9.182 (custom)
Affected: 4.14 , < 4.14.127 (custom)
Affected: 4.19 , < 4.19.52 (custom)
Affected: 5.1 , < 5.1.11 (custom)
Create a notification for this product.
Credits
Jonathan Looney from Netflix
Show details on NVD website
To clipboard 

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              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2019/06/28/2"
            },
            {
              "name": "USN-4041-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4041-2/"
            },
            {
              "name": "[oss-security] 20190706 Re: linux-distros membership application - Microsoft",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2019/07/06/3"
            },
            {
              "name": "[oss-security] 20190706 Re: linux-distros membership application - Microsoft",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2019/07/06/4"
            },
            {
              "name": "RHSA-2019:1699",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:1699"
            },
            {
              "name": "USN-4041-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4041-1/"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpujan2020.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpujan2020.html"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuoct2020.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
            },
            {
              "name": "https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md",
              "refsource": "MISC",
              "url": "https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md"
            },
            {
              "name": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic",
              "refsource": "MISC",
              "url": "https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic"
            },
            {
              "name": "https://access.redhat.com/security/vulnerabilities/tcpsack",
              "refsource": "MISC",
              "url": "https://access.redhat.com/security/vulnerabilities/tcpsack"
            },
            {
              "name": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193",
              "refsource": "CONFIRM",
              "url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193"
            },
            {
              "name": "https://www.synology.com/security/advisory/Synology_SA_19_28",
              "refsource": "CONFIRM",
              "url": "https://www.synology.com/security/advisory/Synology_SA_19_28"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20190625-0001/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20190625-0001/"
            },
            {
              "name": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10287",
              "refsource": "CONFIRM",
              "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10287"
            },
            {
              "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-462066.pdf",
              "refsource": "CONFIRM",
              "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-462066.pdf"
            },
            {
              "name": "https://www.us-cert.gov/ics/advisories/icsa-19-253-03",
              "refsource": "MISC",
              "url": "https://www.us-cert.gov/ics/advisories/icsa-19-253-03"
            },
            {
              "name": "http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt",
              "refsource": "CONFIRM",
              "url": "http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt"
            },
            {
              "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=5f3e2bf008c2221478101ee72f5cb4654b9fc363"
            },
            {
              "name": "https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=967c05aee439e6e5d7d805e195b3a20ef5c433d6",
              "refsource": "MISC",
              "url": "https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=967c05aee439e6e5d7d805e195b3a20ef5c433d6"
            },
            {
              "name": "https://support.f5.com/csp/article/K35421172",
              "refsource": "CONFIRM",
              "url": "https://support.f5.com/csp/article/K35421172"
            },
            {
              "name": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0008",
              "refsource": "CONFIRM",
              "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0008"
            },
            {
              "name": "https://support.f5.com/csp/article/K35421172?utm_source=f5support\u0026amp;utm_medium=RSS",
              "refsource": "CONFIRM",
              "url": "https://support.f5.com/csp/article/K35421172?utm_source=f5support\u0026amp;utm_medium=RSS"
            },
            {
              "name": "https://www.us-cert.gov/ics/advisories/icsma-20-170-06",
              "refsource": "MISC",
              "url": "https://www.us-cert.gov/ics/advisories/icsma-20-170-06"
            }
          ]
        },
        "source": {
          "defect": [
            "https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1832286"
          ],
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
    "assignerShortName": "canonical",
    "cveId": "CVE-2019-11479",
    "datePublished": "2019-06-18T23:34:51.124Z",
    "dateReserved": "2019-04-23T00:00:00.000Z",
    "dateUpdated": "2024-09-16T23:22:00.170Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.