Test ID:	1.3.6.1.4.1.25623.1.0.844053
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-4017-1)
Summary:	The remote host is missing an update for the 'linux, linux-aws, linux-aws-hwe, linux-azure, linux-gcp, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon' package(s) announced via the USN-4017-1 advisory.
Description:	Summary: The remote host is missing an update for the 'linux, linux-aws, linux-aws-hwe, linux-azure, linux-gcp, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon' package(s) announced via the USN-4017-1 advisory. Vulnerability Insight: Jonathan Looney discovered that the TCP retransmission queue implementation in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. (CVE-2019-11478) Jonathan Looney discovered that an integer overflow existed in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service (system crash). (CVE-2019-11477) Affected Software/OS: 'linux, linux-aws, linux-aws-hwe, linux-azure, linux-gcp, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon' package(s) on Ubuntu 16.04, Ubuntu 18.04, Ubuntu 18.10, Ubuntu 19.04. Solution: Please install the updated package(s). CVSS Score: 7.8 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2019-11477 CERT/CC vulnerability note: VU#905115 https://www.kb.cert.org/vuls/id/905115 http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191225-01-kernel-en http://www.vmware.com/security/advisories/VMSA-2019-0010.html https://cert-portal.siemens.com/productcert/pdf/ssa-462066.pdf https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193 https://kc.mcafee.com/corporate/index?page=content&id=SB10287 https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0006 https://security.netapp.com/advisory/ntap-20190625-0001/ https://support.f5.com/csp/article/K78234183 https://www.synology.com/security/advisory/Synology_SA_19_28 http://packetstormsecurity.com/files/153346/Kernel-Live-Patch-Security-Notice-LSN-0052-1.html http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html https://access.redhat.com/security/vulnerabilities/tcpsack https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=3b4929f65b0d8249f19a50245cd88ed1a2f78cff https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic https://www.oracle.com/security-alerts/cpujan2020.html https://www.oracle.com/security-alerts/cpuoct2020.html https://www.us-cert.gov/ics/advisories/icsa-19-253-03 http://www.openwall.com/lists/oss-security/2019/06/20/3 http://www.openwall.com/lists/oss-security/2019/06/28/2 http://www.openwall.com/lists/oss-security/2019/07/06/3 http://www.openwall.com/lists/oss-security/2019/07/06/4 http://www.openwall.com/lists/oss-security/2019/10/24/1 http://www.openwall.com/lists/oss-security/2019/10/29/3 RedHat Security Advisories: RHSA-2019:1594 https://access.redhat.com/errata/RHSA-2019:1594 RedHat Security Advisories: RHSA-2019:1602 https://access.redhat.com/errata/RHSA-2019:1602 RedHat Security Advisories: RHSA-2019:1699 https://access.redhat.com/errata/RHSA-2019:1699 Common Vulnerability Exposure (CVE) ID: CVE-2019-11478 Bugtraq: 20190722 [SECURITY] [DSA 4484-1] linux security update (Google Search) https://seclists.org/bugtraq/2019/Jul/30 https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0007 https://support.f5.com/csp/article/K26618426 http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=f070ef2ac66716357066b683fb0baf55f8191a2e
Copyright	Copyright (C) 2019 Greenbone AG

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