{ "document": { "aggregate_severity": { "text": "Critical" }, "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/centos7els/vex/2023/cve-2023-38545-els_os-centos7els.json" } ], "tracking": { "current_release_date": "2026-06-12T16:12:06Z", "generator": { "date": "2026-06-12T16:12:06Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2023-38545-ELS_OS-CENTOS7ELS", "initial_release_date": "2023-10-18T04:15:00Z", "revision_history": [ { "date": "2023-10-18T04:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2025-10-16T19:49:53Z", "number": "2", "summary": "Official Publication" }, { "date": "2025-12-23T20:55:41Z", "number": "3", "summary": "Update document" }, { "date": "2026-06-12T16:12:06Z", "number": "4", "summary": "Update document" } ], "status": "final", "version": "4" }, "title": "Security update on CVE-2023-38545" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Community Enterprise Operating System 7", "product": { "name": "Community Enterprise Operating System 7", "product_id": "CentOS-7", "product_identification_helper": { "cpe": "cpe:2.3:o:centos:centos:7:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Community Enterprise Operating System" } ], "category": "vendor", "name": "Red Hat, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "curl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "product": { "name": "curl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "product_id": "curl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "product_identification_helper": { "purl": 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"branches": [ { "category": "product_version", "name": "libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.i686", "product": { "name": "libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.i686", "product_id": "libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.i686", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/libcurl@7.29.0-59.el7_9.1.tuxcare.els1?arch=i686" } } }, { "category": "product_version", "name": "libcurl-0:7.29.0-59.el7_9.1.tuxcare.els2.i686", "product": { "name": "libcurl-0:7.29.0-59.el7_9.1.tuxcare.els2.i686", "product_id": "libcurl-0:7.29.0-59.el7_9.1.tuxcare.els2.i686", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/libcurl@7.29.0-59.el7_9.1.tuxcare.els2?arch=i686" } } }, { "category": "product_version", "name": "libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.i686", "product": { "name": "libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.i686", "product_id": "libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.i686", "product_identification_helper": { "purl": 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"libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.i686", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/libcurl-devel@7.29.0-59.el7_9.2.tuxcare.els1?arch=i686" } } } ], "category": "architecture", "name": "i686" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "curl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:curl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64" }, "product_reference": "curl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "curl-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:curl-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64" }, "product_reference": "curl-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "curl-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:curl-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64" }, "product_reference": "curl-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.i686 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.i686" }, "product_reference": "libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.i686", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 7", "product_id": 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"libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.i686 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.i686" }, "product_reference": "libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.i686", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64" }, "product_reference": "libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els1.i686 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els1.i686" }, "product_reference": "libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els1.i686", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64" }, "product_reference": "libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els2.i686 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els2.i686" }, "product_reference": "libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els2.i686", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64" }, "product_reference": "libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.i686 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.i686" }, "product_reference": "libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.i686", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64" }, "product_reference": "libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-7" } ] }, "vulnerabilities": [ { "cve": "CVE-2023-38545", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "notes": [ { "category": "description", "text": "This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy\nhandshake.\n\nWhen curl is asked to pass along the host name to the SOCKS5 proxy to allow\nthat to resolve the address instead of it getting done by curl itself, the\nmaximum length that host name can be is 255 bytes.\n\nIf the host name is detected to be longer, curl switches to local name\nresolving and instead passes on the resolved address only. Due to this bug,\nthe local variable that means \"let the host resolve the name\" could get the\nwrong value during a slow SOCKS5 handshake, and contrary to the intention,\ncopy the too long host name to the target buffer instead of copying just the\nresolved address there.\n\nThe target buffer being a heap based buffer, and the host name coming from the\nURL that curl has been told to operate with.", "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": [ "CentOS-7:curl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "CentOS-7:curl-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64", "CentOS-7:curl-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64", "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.i686", "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els2.i686", "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64", "CentOS-7:libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.i686", "CentOS-7:libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els1.i686", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els2.i686", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.i686", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2023-38545" }, { "category": "external", "summary": "http://seclists.org/fulldisclosure/2024/Jan/34", "url": "http://seclists.org/fulldisclosure/2024/Jan/34" }, { "category": "external", "summary": "http://seclists.org/fulldisclosure/2024/Jan/37", "url": "http://seclists.org/fulldisclosure/2024/Jan/37" }, { "category": "external", "summary": "http://seclists.org/fulldisclosure/2024/Jan/38", "url": "http://seclists.org/fulldisclosure/2024/Jan/38" }, { "category": "external", "summary": "https://curl.se/docs/CVE-2023-38545.html", "url": "https://curl.se/docs/CVE-2023-38545.html" }, { "category": "external", "summary": "https://forum.vmssoftware.com/viewtopic.php?f=8&t=8868", "url": "https://forum.vmssoftware.com/viewtopic.php?f=8&t=8868" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGMXNRNSJ4ETDK6FRNU3J7SABXPWCHSQ/", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGMXNRNSJ4ETDK6FRNU3J7SABXPWCHSQ/" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20231027-0009/", "url": "https://security.netapp.com/advisory/ntap-20231027-0009/" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20240201-0005/", "url": "https://security.netapp.com/advisory/ntap-20240201-0005/" }, { "category": "external", "summary": "https://support.apple.com/kb/HT214036", "url": "https://support.apple.com/kb/HT214036" }, { "category": "external", "summary": "https://support.apple.com/kb/HT214057", "url": "https://support.apple.com/kb/HT214057" }, { "category": "external", "summary": "https://support.apple.com/kb/HT214058", "url": "https://support.apple.com/kb/HT214058" }, { "category": "external", "summary": "https://support.apple.com/kb/HT214063", "url": "https://support.apple.com/kb/HT214063" }, { "category": "external", "summary": "https://www.secpod.com/blog/high-severity-heap-buffer-overflow-vulnerability/", "url": "https://www.secpod.com/blog/high-severity-heap-buffer-overflow-vulnerability/" }, { "category": "external", "summary": "https://github.com/UTsweetyfish/CVE-2023-38545", "url": "https://github.com/UTsweetyfish/CVE-2023-38545" }, { "category": "external", "summary": "https://github.com/bcdannyboy/CVE-2023-38545", "url": "https://github.com/bcdannyboy/CVE-2023-38545" }, { "category": "external", "summary": "https://github.com/dbrugman/CVE-2023-38545-POC", "url": "https://github.com/dbrugman/CVE-2023-38545-POC" }, { "category": "external", "summary": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html", "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html" }, { "category": "external", "summary": "https://cert-portal.siemens.com/productcert/html/ssa-093430.html", "url": "https://cert-portal.siemens.com/productcert/html/ssa-093430.html" }, { "category": "external", "summary": "https://cert-portal.siemens.com/productcert/html/ssa-507364.html", "url": "https://cert-portal.siemens.com/productcert/html/ssa-507364.html" }, { "category": "external", "summary": "https://cert-portal.siemens.com/productcert/html/ssa-832273.html", "url": "https://cert-portal.siemens.com/productcert/html/ssa-832273.html" }, { "category": "external", "summary": "https://cert-portal.siemens.com/productcert/html/ssa-943925.html", "url": "https://cert-portal.siemens.com/productcert/html/ssa-943925.html" } ], "release_date": "2023-10-18T04:15:00Z", "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "CentOS-7:curl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "CentOS-7:curl-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64", "CentOS-7:curl-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64", "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.i686", "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els2.i686", "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64", "CentOS-7:libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.i686", "CentOS-7:libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els1.i686", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els2.i686", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.i686", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Critical" }, { "category": "impact", "date": "2026-06-12T12:57:59.888797Z", "details": "Not affected: CVE-2023-38545 only impacts curl/libcurl versions 7.69.0 through 8.3.0; versions earlier than 7.69.0 are explicitly not impacted. The deployed project uses curl/libcurl 7.29.0, which predates the vulnerable SOCKS5 state-machine change and therefore does not include the affected code path.", "product_ids": [ "CentOS-7:curl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "CentOS-7:curl-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64", "CentOS-7:curl-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64", "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.i686", "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els2.i686", "CentOS-7:libcurl-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64", "CentOS-7:libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.i686", "CentOS-7:libcurl-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els1.i686", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els1.x86_64", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els2.i686", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.1.tuxcare.els2.x86_64", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.i686", "CentOS-7:libcurl-devel-0:7.29.0-59.el7_9.2.tuxcare.els1.x86_64" ] } ] } ] }