{ "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/oraclelinux6els/vex/2018/cve-2018-20102-els_os-oraclelinux6els.json" } ], "tracking": { "current_release_date": "2026-04-19T13:44:08Z", "generator": { "date": "2026-04-19T13:44:08Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2018-20102-ELS_OS-ORACLELINUX6ELS", "initial_release_date": "2018-12-12T17:29:00Z", "revision_history": [ { "date": "2018-12-12T17:29:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-04-15T22:52:43Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-04-19T13:44:08Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "3" }, "title": "Security update on CVE-2018-20102" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Oracle Linux 6", "product": { "name": "Oracle Linux 6", "product_id": "Oracle-Linux-6", "product_identification_helper": { "cpe": "cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Oracle Linux" } ], "category": "vendor", "name": "Oracle Corporation" }, { "branches": [ { "branches": [ { "category": "product_version", "name": "haproxy-0:1.5.18-1.el6.tuxcare.els1.x86_64", "product": { "name": "haproxy-0:1.5.18-1.el6.tuxcare.els1.x86_64", "product_id": "haproxy-0:1.5.18-1.el6.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/haproxy@1.5.18-1.el6.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "haproxy-0:1.5.18-1.el6.tuxcare.els2.x86_64", "product": { "name": "haproxy-0:1.5.18-1.el6.tuxcare.els2.x86_64", "product_id": "haproxy-0:1.5.18-1.el6.tuxcare.els2.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/haproxy@1.5.18-1.el6.tuxcare.els2?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "CloudLinux" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "haproxy-0:1.5.18-1.el6.tuxcare.els1.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:haproxy-0:1.5.18-1.el6.tuxcare.els1.x86_64" }, "product_reference": "haproxy-0:1.5.18-1.el6.tuxcare.els1.x86_64", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "haproxy-0:1.5.18-1.el6.tuxcare.els2.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:haproxy-0:1.5.18-1.el6.tuxcare.els2.x86_64" }, "product_reference": "haproxy-0:1.5.18-1.el6.tuxcare.els2.x86_64", "relates_to_product_reference": "Oracle-Linux-6" } ] }, "vulnerabilities": [ { "cve": "CVE-2018-20102", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "An out-of-bounds read in dns_validate_dns_response in dns.c was discovered in HAProxy through 1.8.14. Due to a missing check when validating DNS responses, remote attackers might be able read the 16 bytes corresponding to an AAAA record from the non-initialized part of the buffer, possibly accessing anything that was left on the stack, or even past the end of the 8193-byte buffer, depending on the value of accepted_payload_size.", "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" }, { "category": "other", "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.", "title": "Statement" } ], "product_status": { "known_not_affected": [ "Oracle-Linux-6:haproxy-0:1.5.18-1.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:haproxy-0:1.5.18-1.el6.tuxcare.els2.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2018-20102" }, { "category": "external", "summary": "http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=efbbdf72992cd20458259962346044cafd9331c0", "url": "http://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=efbbdf72992cd20458259962346044cafd9331c0" }, { "category": "external", "summary": "http://www.securityfocus.com/bid/106223", "url": "http://www.securityfocus.com/bid/106223" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHBA-2019:0326", "url": "https://access.redhat.com/errata/RHBA-2019:0326" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHBA-2019:0327", "url": "https://access.redhat.com/errata/RHBA-2019:0327" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2019:1436", "url": "https://access.redhat.com/errata/RHSA-2019:1436" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2022/05/msg00045.html", "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00045.html" }, { "category": "external", "summary": "https://usn.ubuntu.com/3858-1/", "url": "https://usn.ubuntu.com/3858-1/" } ], "release_date": "2018-12-12T17:29:00Z", "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0" }, "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.0" }, "products": [ "Oracle-Linux-6:haproxy-0:1.5.18-1.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:haproxy-0:1.5.18-1.el6.tuxcare.els2.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" }, { "category": "impact", "details": "important", "product_ids": [ "Oracle-Linux-6:haproxy-0:1.5.18-1.el6.tuxcare.els1.x86_64", "Oracle-Linux-6:haproxy-0:1.5.18-1.el6.tuxcare.els2.x86_64" ] } ] } ] }