Test ID:	1.3.6.1.4.1.25623.1.0.108951
Category:	Denial of Service
Title:	AVM FRITZ!Box TCP SACK PANIC - Kernel Vulnerabilities
Summary:	Multiple AVM FRITZ!Box devices are prone to multiple Denial of Service; vulnerabilities.
Description:	Summary: Multiple AVM FRITZ!Box devices are prone to multiple Denial of Service vulnerabilities. Vulnerability Insight: Three related flaws were found in the Linux kernel's handling of TCP Selective Acknowledgement (SACK) packets handling with low MSS size. Vulnerability Impact: The extent of impact is understood to be limited to denial of service at this time. No privilege escalation or information leak is currently suspected Affected Software/OS: AVM FRITZ!Box devices running AVM FRITZ!OS before version 7.12. Solution: Update to AVM FRITZ!OS 7.12 or later. 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 Common Vulnerability Exposure (CVE) ID: CVE-2019-11479 BugTraq ID: 108818 http://www.securityfocus.com/bid/108818 https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0008 https://support.f5.com/csp/article/K35421172 https://support.f5.com/csp/article/K35421172?utm_source=f5support&utm_medium=RSS https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=5f3e2bf008c2221478101ee72f5cb4654b9fc363 https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=967c05aee439e6e5d7d805e195b3a20ef5c433d6 https://www.us-cert.gov/ics/advisories/icsma-20-170-06 https://usn.ubuntu.com/4041-1/ https://usn.ubuntu.com/4041-2/
Copyright	Copyright (C) 2020 Greenbone Networks GmbH

This is only one of 145615 vulnerability tests in our test suite. Find out more about running a complete security audit. To run a free test of this vulnerability against your system, register below.