{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/centos6els/vex/2017/cve-2017-5495-els_os-centos6els.json" } ], "tracking": { "current_release_date": "2026-04-17T20:46:11Z", "generator": { "date": "2026-04-17T20:46:11Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2017-5495-ELS_OS-CENTOS6ELS", "initial_release_date": "2017-01-24T07:59:00Z", "revision_history": [ { "date": "2017-01-24T07:59:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-04-17T20:46:11Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2017-5495" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Community Enterprise Operating System 6", "product": { "name": "Community Enterprise Operating System 6", "product_id": "CentOS-6", "product_identification_helper": { "cpe": "cpe:2.3:o:centos:centos:6:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Community Enterprise Operating System" } ], "category": "vendor", "name": "Red Hat, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "quagga-devel-0:0.99.15-14.el6.tuxcare.els1.x86_64", "product": { "name": "quagga-devel-0:0.99.15-14.el6.tuxcare.els1.x86_64", "product_id": "quagga-devel-0:0.99.15-14.el6.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/quagga-devel@0.99.15-14.el6.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "quagga-devel-0:0.99.15-14.el6.tuxcare.els2.x86_64", "product": { "name": "quagga-devel-0:0.99.15-14.el6.tuxcare.els2.x86_64", "product_id": "quagga-devel-0:0.99.15-14.el6.tuxcare.els2.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/quagga-devel@0.99.15-14.el6.tuxcare.els2?arch=x86_64" } } }, { "category": "product_version", "name": "quagga-0:0.99.15-14.el6.tuxcare.els2.x86_64", "product": { "name": "quagga-0:0.99.15-14.el6.tuxcare.els2.x86_64", "product_id": "quagga-0:0.99.15-14.el6.tuxcare.els2.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/quagga@0.99.15-14.el6.tuxcare.els2?arch=x86_64" } } }, { "category": "product_version", "name": "quagga-contrib-0:0.99.15-14.el6.tuxcare.els2.x86_64", "product": { "name": "quagga-contrib-0:0.99.15-14.el6.tuxcare.els2.x86_64", "product_id": "quagga-contrib-0:0.99.15-14.el6.tuxcare.els2.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/quagga-contrib@0.99.15-14.el6.tuxcare.els2?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" }, { "branches": [ { "category": "product_version", "name": "quagga-devel-0:0.99.15-14.el6.tuxcare.els1.i686", "product": { "name": "quagga-devel-0:0.99.15-14.el6.tuxcare.els1.i686", "product_id": "quagga-devel-0:0.99.15-14.el6.tuxcare.els1.i686", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/quagga-devel@0.99.15-14.el6.tuxcare.els1?arch=i686" } } }, { "category": "product_version", "name": "quagga-devel-0:0.99.15-14.el6.tuxcare.els2.i686", "product": { "name": "quagga-devel-0:0.99.15-14.el6.tuxcare.els2.i686", "product_id": "quagga-devel-0:0.99.15-14.el6.tuxcare.els2.i686", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/quagga-devel@0.99.15-14.el6.tuxcare.els2?arch=i686" } } } ], "category": "architecture", "name": "i686" } ], "category": "vendor", "name": "CloudLinux" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "quagga-devel-0:0.99.15-14.el6.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els1.x86_64" }, "product_reference": "quagga-devel-0:0.99.15-14.el6.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-6" }, { "category": "default_component_of", "full_product_name": { "name": "quagga-devel-0:0.99.15-14.el6.tuxcare.els1.i686 as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els1.i686" }, "product_reference": "quagga-devel-0:0.99.15-14.el6.tuxcare.els1.i686", "relates_to_product_reference": "CentOS-6" }, { "category": "default_component_of", "full_product_name": { "name": "quagga-devel-0:0.99.15-14.el6.tuxcare.els2.x86_64 as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els2.x86_64" }, "product_reference": "quagga-devel-0:0.99.15-14.el6.tuxcare.els2.x86_64", "relates_to_product_reference": "CentOS-6" }, { "category": "default_component_of", "full_product_name": { "name": "quagga-devel-0:0.99.15-14.el6.tuxcare.els2.i686 as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els2.i686" }, "product_reference": "quagga-devel-0:0.99.15-14.el6.tuxcare.els2.i686", "relates_to_product_reference": "CentOS-6" }, { "category": "default_component_of", "full_product_name": { "name": "quagga-0:0.99.15-14.el6.tuxcare.els2.x86_64 as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:quagga-0:0.99.15-14.el6.tuxcare.els2.x86_64" }, "product_reference": "quagga-0:0.99.15-14.el6.tuxcare.els2.x86_64", "relates_to_product_reference": "CentOS-6" }, { "category": "default_component_of", "full_product_name": { "name": "quagga-contrib-0:0.99.15-14.el6.tuxcare.els2.x86_64 as a component of Community Enterprise Operating System 6", "product_id": "CentOS-6:quagga-contrib-0:0.99.15-14.el6.tuxcare.els2.x86_64" }, "product_reference": "quagga-contrib-0:0.99.15-14.el6.tuxcare.els2.x86_64", "relates_to_product_reference": "CentOS-6" } ] }, "vulnerabilities": [ { "cve": "CVE-2017-5495", "cwe": { "id": "CWE-119", "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer" }, "notes": [ { "category": "description", "text": "All versions of Quagga, 0.93 through 1.1.0, are vulnerable to an unbounded memory allocation in the telnet 'vty' CLI, leading to a Denial-of-Service of Quagga daemons, or even the entire host. When Quagga daemons are configured with their telnet CLI enabled, anyone who can connect to the TCP ports can trigger this vulnerability, prior to authentication. Most distributions restrict the Quagga telnet interface to local access only by default. The Quagga telnet interface 'vty' input buffer grows automatically, without bound, so long as a newline is not entered. This allows an attacker to cause the Quagga daemon to allocate unbounded memory by sending very long strings without a newline. Eventually the daemon is terminated by the system, or the system itself runs out of memory. This is fixed in Quagga 1.1.1 and Free Range Routing (FRR) Protocol Suite 2017-01-10.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "under_investigation": [ "CentOS-6:quagga-0:0.99.15-14.el6.tuxcare.els2.x86_64", "CentOS-6:quagga-contrib-0:0.99.15-14.el6.tuxcare.els2.x86_64", "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els1.i686", "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els1.x86_64", "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els2.i686", "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els2.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2017-5495" }, { "category": "external", "summary": "http://rhn.redhat.com/errata/RHSA-2017-0794.html", "url": "http://rhn.redhat.com/errata/RHSA-2017-0794.html" }, { "category": "external", "summary": "http://savannah.nongnu.org/forum/forum.php?forum_id=8783", "url": "http://savannah.nongnu.org/forum/forum.php?forum_id=8783" }, { "category": "external", "summary": "http://www.securityfocus.com/bid/95745", "url": "http://www.securityfocus.com/bid/95745" }, { "category": "external", "summary": "http://www.securitytracker.com/id/1037688", "url": "http://www.securitytracker.com/id/1037688" }, { "category": "external", "summary": "https://github.com/freerangerouting/frr/pull/63", "url": "https://github.com/freerangerouting/frr/pull/63" }, { "category": "external", "summary": "https://lists.quagga.net/pipermail/quagga-dev/2017-January/016586.html", "url": "https://lists.quagga.net/pipermail/quagga-dev/2017-January/016586.html" } ], "release_date": "2017-01-24T07:59:00Z", "remediations": [ { "category": "none_available", "details": "Affected", "product_ids": [ "CentOS-6:quagga-0:0.99.15-14.el6.tuxcare.els2.x86_64", "CentOS-6:quagga-contrib-0:0.99.15-14.el6.tuxcare.els2.x86_64", "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els1.i686", "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els1.x86_64", "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els2.i686", "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els2.x86_64" ] } ], "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "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:H", "version": "3.0" }, "products": [ "CentOS-6:quagga-0:0.99.15-14.el6.tuxcare.els2.x86_64", "CentOS-6:quagga-contrib-0:0.99.15-14.el6.tuxcare.els2.x86_64", "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els1.i686", "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els1.x86_64", "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els2.i686", "CentOS-6:quagga-devel-0:0.99.15-14.el6.tuxcare.els2.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }