{ "document": { "aggregate_severity": { "text": "Medium" }, "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_alt_common/el7/vex/2017/cve-2017-3737-els_alt_common-el7.json" } ], "tracking": { "current_release_date": "2026-06-13T05:00:40Z", "generator": { "date": "2026-06-13T05:00:40Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2017-3737-ELS_ALT_COMMON-EL7", "initial_release_date": "2017-12-07T16:29:00Z", "revision_history": [ { "date": "2017-12-07T16:29:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-06-12T16:47:26Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-06-13T05:00:40Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "3" }, "title": "Security update on CVE-2017-3737" }, "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": "Cloud Linux Software, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "alt-openssl11-1:1.1.1w-3.3.el7.x86_64", "product": { "name": "alt-openssl11-1:1.1.1w-3.3.el7.x86_64", "product_id": "alt-openssl11-1:1.1.1w-3.3.el7.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11@1.1.1w-3.3.el7?arch=x86_64&epoch=1&os_name=centos&os_version=7" } } }, { "category": "product_version", "name": "alt-openssl11-1:1.1.1w-3.1.el7.x86_64", "product": { "name": "alt-openssl11-1:1.1.1w-3.1.el7.x86_64", "product_id": "alt-openssl11-1:1.1.1w-3.1.el7.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11@1.1.1w-3.1.el7?arch=x86_64&epoch=1&os_name=centos&os_version=7" } } }, { "category": "product_version", "name": "alt-openssl11-1:1.1.1w-3.2.el7.x86_64", "product": { "name": "alt-openssl11-1:1.1.1w-3.2.el7.x86_64", "product_id": "alt-openssl11-1:1.1.1w-3.2.el7.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11@1.1.1w-3.2.el7?arch=x86_64&epoch=1&os_name=centos&os_version=7" } } }, { "category": "product_version", "name": "alt-openssl11-devel-1:1.1.1w-3.1.el7.x86_64", "product": { "name": "alt-openssl11-devel-1:1.1.1w-3.1.el7.x86_64", "product_id": "alt-openssl11-devel-1:1.1.1w-3.1.el7.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11-devel@1.1.1w-3.1.el7?arch=x86_64&epoch=1&os_name=centos&os_version=7" } } }, { "category": "product_version", "name": "alt-openssl11-devel-1:1.1.1w-3.2.el7.x86_64", "product": { "name": "alt-openssl11-devel-1:1.1.1w-3.2.el7.x86_64", "product_id": "alt-openssl11-devel-1:1.1.1w-3.2.el7.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11-devel@1.1.1w-3.2.el7?arch=x86_64&epoch=1&os_name=centos&os_version=7" } } }, { "category": "product_version", "name": "alt-openssl11-devel-1:1.1.1w-3.3.el7.x86_64", "product": { "name": "alt-openssl11-devel-1:1.1.1w-3.3.el7.x86_64", "product_id": "alt-openssl11-devel-1:1.1.1w-3.3.el7.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11-devel@1.1.1w-3.3.el7?arch=x86_64&epoch=1&os_name=centos&os_version=7" } } }, { "category": "product_version", "name": "alt-openssl11-libs-1:1.1.1w-3.3.el7.x86_64", "product": { "name": "alt-openssl11-libs-1:1.1.1w-3.3.el7.x86_64", "product_id": "alt-openssl11-libs-1:1.1.1w-3.3.el7.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11-libs@1.1.1w-3.3.el7?arch=x86_64&epoch=1&os_name=centos&os_version=7" } } }, { "category": "product_version", "name": "alt-openssl11-libs-1:1.1.1w-3.2.el7.x86_64", "product": { "name": "alt-openssl11-libs-1:1.1.1w-3.2.el7.x86_64", "product_id": "alt-openssl11-libs-1:1.1.1w-3.2.el7.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11-libs@1.1.1w-3.2.el7?arch=x86_64&epoch=1&os_name=centos&os_version=7" } } }, { "category": "product_version", "name": "alt-openssl11-libs-1:1.1.1w-3.1.el7.x86_64", "product": { "name": "alt-openssl11-libs-1:1.1.1w-3.1.el7.x86_64", "product_id": "alt-openssl11-libs-1:1.1.1w-3.1.el7.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11-libs@1.1.1w-3.1.el7?arch=x86_64&epoch=1&os_name=centos&os_version=7" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-1:1.1.1w-3.3.el7.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:alt-openssl11-1:1.1.1w-3.3.el7.x86_64" }, "product_reference": "alt-openssl11-1:1.1.1w-3.3.el7.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-1:1.1.1w-3.1.el7.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:alt-openssl11-1:1.1.1w-3.1.el7.x86_64" }, "product_reference": "alt-openssl11-1:1.1.1w-3.1.el7.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-1:1.1.1w-3.2.el7.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:alt-openssl11-1:1.1.1w-3.2.el7.x86_64" }, "product_reference": "alt-openssl11-1:1.1.1w-3.2.el7.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-devel-1:1.1.1w-3.1.el7.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:alt-openssl11-devel-1:1.1.1w-3.1.el7.x86_64" }, "product_reference": "alt-openssl11-devel-1:1.1.1w-3.1.el7.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-devel-1:1.1.1w-3.2.el7.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:alt-openssl11-devel-1:1.1.1w-3.2.el7.x86_64" }, "product_reference": "alt-openssl11-devel-1:1.1.1w-3.2.el7.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-devel-1:1.1.1w-3.3.el7.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:alt-openssl11-devel-1:1.1.1w-3.3.el7.x86_64" }, "product_reference": "alt-openssl11-devel-1:1.1.1w-3.3.el7.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-libs-1:1.1.1w-3.3.el7.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:alt-openssl11-libs-1:1.1.1w-3.3.el7.x86_64" }, "product_reference": "alt-openssl11-libs-1:1.1.1w-3.3.el7.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-libs-1:1.1.1w-3.2.el7.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:alt-openssl11-libs-1:1.1.1w-3.2.el7.x86_64" }, "product_reference": "alt-openssl11-libs-1:1.1.1w-3.2.el7.x86_64", "relates_to_product_reference": "CentOS-7" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-libs-1:1.1.1w-3.1.el7.x86_64 as a component of Community Enterprise Operating System 7", "product_id": "CentOS-7:alt-openssl11-libs-1:1.1.1w-3.1.el7.x86_64" }, "product_reference": "alt-openssl11-libs-1:1.1.1w-3.1.el7.x86_64", "relates_to_product_reference": "CentOS-7" } ] }, "vulnerabilities": [ { "cve": "CVE-2017-3737", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an \"error state\" mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into the error state and would immediately fail if you attempted to continue the handshake. This works as designed for the explicit handshake functions (SSL_do_handshake(), SSL_accept() and SSL_connect()), however due to a bug it does not work correctly if SSL_read() or SSL_write() is called directly. In that scenario, if the handshake fails then a fatal error will be returned in the initial function call. If SSL_read()/SSL_write() is subsequently called by the application for the same SSL object then it will succeed and the data is passed without being decrypted/encrypted directly from the SSL/TLS record layer. In order to exploit this issue an application bug would have to be present that resulted in a call to SSL_read()/SSL_write() being issued after having already received a fatal error. OpenSSL version 1.0.2b-1.0.2m are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is not affected.", "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:alt-openssl11-1:1.1.1w-3.1.el7.x86_64", "CentOS-7:alt-openssl11-1:1.1.1w-3.2.el7.x86_64", "CentOS-7:alt-openssl11-1:1.1.1w-3.3.el7.x86_64", "CentOS-7:alt-openssl11-devel-1:1.1.1w-3.1.el7.x86_64", "CentOS-7:alt-openssl11-devel-1:1.1.1w-3.2.el7.x86_64", "CentOS-7:alt-openssl11-devel-1:1.1.1w-3.3.el7.x86_64", "CentOS-7:alt-openssl11-libs-1:1.1.1w-3.1.el7.x86_64", "CentOS-7:alt-openssl11-libs-1:1.1.1w-3.2.el7.x86_64", "CentOS-7:alt-openssl11-libs-1:1.1.1w-3.3.el7.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els-lang/cve/CVE-2017-3737" }, { "category": "external", "summary": "http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html", "url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html" }, { "category": "external", "summary": "http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html", "url": "http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html" }, { "category": "external", "summary": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html", "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html" }, { "category": "external", "summary": "http://www.securityfocus.com/bid/102103", "url": "http://www.securityfocus.com/bid/102103" }, { "category": "external", "summary": "http://www.securitytracker.com/id/1039978", "url": "http://www.securitytracker.com/id/1039978" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2018:0998", "url": "https://access.redhat.com/errata/RHSA-2018:0998" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2018:2185", "url": "https://access.redhat.com/errata/RHSA-2018:2185" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2018:2186", "url": "https://access.redhat.com/errata/RHSA-2018:2186" }, { "category": "external", "summary": "https://access.redhat.com/errata/RHSA-2018:2187", "url": "https://access.redhat.com/errata/RHSA-2018:2187" }, { "category": "external", "summary": "https://cert-portal.siemens.com/productcert/pdf/ssa-179516.pdf", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-179516.pdf" }, { "category": "external", "summary": "https://github.com/openssl/openssl/commit/898fb884b706aaeb283de4812340bb0bde8476dc", "url": "https://github.com/openssl/openssl/commit/898fb884b706aaeb283de4812340bb0bde8476dc" }, { "category": "external", "summary": "https://security.FreeBSD.org/advisories/FreeBSD-SA-17:12.openssl.asc", "url": "https://security.freebsd.org/advisories/FreeBSD-SA-17:12.openssl.asc" }, { "category": "external", "summary": "https://security.gentoo.org/glsa/201712-03", "url": "https://security.gentoo.org/glsa/201712-03" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20171208-0001/", "url": "https://security.netapp.com/advisory/ntap-20171208-0001/" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20180117-0002/", "url": "https://security.netapp.com/advisory/ntap-20180117-0002/" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20180419-0002/", "url": "https://security.netapp.com/advisory/ntap-20180419-0002/" }, { "category": "external", "summary": "https://www.debian.org/security/2017/dsa-4065", "url": "https://www.debian.org/security/2017/dsa-4065" }, { "category": "external", "summary": "https://www.digitalmunition.me/2017/12/cve-2017-3737-openssl-security-bypass-vulnerability/", "url": "https://www.digitalmunition.me/2017/12/cve-2017-3737-openssl-security-bypass-vulnerability/" }, { "category": "external", "summary": "https://www.openssl.org/news/secadv/20171207.txt", "url": "https://www.openssl.org/news/secadv/20171207.txt" }, { "category": "external", "summary": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html", "url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html" }, { "category": "external", "summary": "https://www.tenable.com/security/tns-2017-16", "url": "https://www.tenable.com/security/tns-2017-16" }, { "category": "external", "summary": "https://security.FreeBSD.org/advisories/FreeBSD-SA-17:12.openssl.asc", "url": "https://security.freebsd.org/advisories/FreeBSD-SA-17:12.openssl.asc" } ], "release_date": "2017-12-07T16:29:00Z", "scores": [ { "cvss_v2": { "accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0" }, "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.0" }, "products": [ "CentOS-7:alt-openssl11-1:1.1.1w-3.1.el7.x86_64", "CentOS-7:alt-openssl11-1:1.1.1w-3.2.el7.x86_64", "CentOS-7:alt-openssl11-1:1.1.1w-3.3.el7.x86_64", "CentOS-7:alt-openssl11-devel-1:1.1.1w-3.1.el7.x86_64", "CentOS-7:alt-openssl11-devel-1:1.1.1w-3.2.el7.x86_64", "CentOS-7:alt-openssl11-devel-1:1.1.1w-3.3.el7.x86_64", "CentOS-7:alt-openssl11-libs-1:1.1.1w-3.1.el7.x86_64", "CentOS-7:alt-openssl11-libs-1:1.1.1w-3.2.el7.x86_64", "CentOS-7:alt-openssl11-libs-1:1.1.1w-3.3.el7.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" }, { "category": "impact", "date": "2026-06-12T13:13:08.404596Z", "details": "Not vulnerable. CVE-2017-3737 applies only to OpenSSL 1.0.2b–1.0.2m (fixed in 1.0.2n), and OpenSSL 1.1.0 and later—including 1.1.1/1.1.1w—are not affected because the error‑state handling is correct in the 1.1.x branch. As a result, the vulnerable code path is not present in the OpenSSL 1.1.1 version in use.", "product_ids": [ "CentOS-7:alt-openssl11-1:1.1.1w-3.1.el7.x86_64", "CentOS-7:alt-openssl11-1:1.1.1w-3.2.el7.x86_64", "CentOS-7:alt-openssl11-1:1.1.1w-3.3.el7.x86_64", "CentOS-7:alt-openssl11-devel-1:1.1.1w-3.1.el7.x86_64", "CentOS-7:alt-openssl11-devel-1:1.1.1w-3.2.el7.x86_64", "CentOS-7:alt-openssl11-devel-1:1.1.1w-3.3.el7.x86_64", "CentOS-7:alt-openssl11-libs-1:1.1.1w-3.1.el7.x86_64", "CentOS-7:alt-openssl11-libs-1:1.1.1w-3.2.el7.x86_64", "CentOS-7:alt-openssl11-libs-1:1.1.1w-3.3.el7.x86_64" ] } ] } ] }