{ "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/el9/vex/2021/cve-2021-4160-els_alt_common-el9.json" } ], "tracking": { "current_release_date": "2026-06-12T16:53:51Z", "generator": { "date": "2026-06-12T16:53:51Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2021-4160-ELS_ALT_COMMON-EL9", "initial_release_date": "2021-01-01T00:00:00Z", "revision_history": [ { "date": "2021-01-01T00:00:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-06-12T16:53:51Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2021-4160" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Community Enterprise Operating System 9", "product": { "name": "Community Enterprise Operating System 9", "product_id": "CentOS-9", "product_identification_helper": { "cpe": "cpe:2.3:o:centos:centos:9:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Community Enterprise Operating System" } ], "category": "vendor", "name": "Cloud Linux Software, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "alt-openssl11-devel-1:1.1.1w-3.2.el9.x86_64", "product": { "name": "alt-openssl11-devel-1:1.1.1w-3.2.el9.x86_64", "product_id": "alt-openssl11-devel-1:1.1.1w-3.2.el9.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11-devel@1.1.1w-3.2.el9?arch=x86_64&epoch=1&os_name=centos&os_version=9" } } }, { "category": "product_version", "name": "alt-openssl11-devel-1:1.1.1w-3.1.el9.x86_64", "product": { "name": "alt-openssl11-devel-1:1.1.1w-3.1.el9.x86_64", "product_id": "alt-openssl11-devel-1:1.1.1w-3.1.el9.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11-devel@1.1.1w-3.1.el9?arch=x86_64&epoch=1&os_name=centos&os_version=9" } } }, { "category": "product_version", "name": "alt-openssl11-devel-1:1.1.1w-3.3.el9.x86_64", "product": { "name": "alt-openssl11-devel-1:1.1.1w-3.3.el9.x86_64", "product_id": "alt-openssl11-devel-1:1.1.1w-3.3.el9.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11-devel@1.1.1w-3.3.el9?arch=x86_64&epoch=1&os_name=centos&os_version=9" } } }, { "category": "product_version", "name": "alt-openssl11-libs-1:1.1.1w-3.2.el9.x86_64", "product": { "name": "alt-openssl11-libs-1:1.1.1w-3.2.el9.x86_64", "product_id": "alt-openssl11-libs-1:1.1.1w-3.2.el9.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11-libs@1.1.1w-3.2.el9?arch=x86_64&epoch=1&os_name=centos&os_version=9" } } }, { "category": "product_version", "name": "alt-openssl11-libs-1:1.1.1w-3.1.el9.x86_64", "product": { "name": "alt-openssl11-libs-1:1.1.1w-3.1.el9.x86_64", "product_id": "alt-openssl11-libs-1:1.1.1w-3.1.el9.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11-libs@1.1.1w-3.1.el9?arch=x86_64&epoch=1&os_name=centos&os_version=9" } } }, { "category": "product_version", "name": "alt-openssl11-libs-1:1.1.1w-3.3.el9.x86_64", "product": { "name": "alt-openssl11-libs-1:1.1.1w-3.3.el9.x86_64", "product_id": "alt-openssl11-libs-1:1.1.1w-3.3.el9.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11-libs@1.1.1w-3.3.el9?arch=x86_64&epoch=1&os_name=centos&os_version=9" } } }, { "category": "product_version", "name": "alt-openssl11-1:1.1.1w-3.3.el9.x86_64", "product": { "name": "alt-openssl11-1:1.1.1w-3.3.el9.x86_64", "product_id": "alt-openssl11-1:1.1.1w-3.3.el9.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11@1.1.1w-3.3.el9?arch=x86_64&epoch=1&os_name=centos&os_version=9" } } }, { "category": "product_version", "name": "alt-openssl11-1:1.1.1w-3.2.el9.x86_64", "product": { "name": "alt-openssl11-1:1.1.1w-3.2.el9.x86_64", "product_id": "alt-openssl11-1:1.1.1w-3.2.el9.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11@1.1.1w-3.2.el9?arch=x86_64&epoch=1&os_name=centos&os_version=9" } } }, { "category": "product_version", "name": "alt-openssl11-1:1.1.1w-3.1.el9.x86_64", "product": { "name": "alt-openssl11-1:1.1.1w-3.1.el9.x86_64", "product_id": "alt-openssl11-1:1.1.1w-3.1.el9.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/alt-openssl11@1.1.1w-3.1.el9?arch=x86_64&epoch=1&os_name=centos&os_version=9" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-devel-1:1.1.1w-3.2.el9.x86_64 as a component of Community Enterprise Operating System 9", "product_id": "CentOS-9:alt-openssl11-devel-1:1.1.1w-3.2.el9.x86_64" }, "product_reference": "alt-openssl11-devel-1:1.1.1w-3.2.el9.x86_64", "relates_to_product_reference": "CentOS-9" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-devel-1:1.1.1w-3.1.el9.x86_64 as a component of Community Enterprise Operating System 9", "product_id": "CentOS-9:alt-openssl11-devel-1:1.1.1w-3.1.el9.x86_64" }, "product_reference": "alt-openssl11-devel-1:1.1.1w-3.1.el9.x86_64", "relates_to_product_reference": "CentOS-9" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-devel-1:1.1.1w-3.3.el9.x86_64 as a component of Community Enterprise Operating System 9", "product_id": "CentOS-9:alt-openssl11-devel-1:1.1.1w-3.3.el9.x86_64" }, "product_reference": "alt-openssl11-devel-1:1.1.1w-3.3.el9.x86_64", "relates_to_product_reference": "CentOS-9" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-libs-1:1.1.1w-3.2.el9.x86_64 as a component of Community Enterprise Operating System 9", "product_id": "CentOS-9:alt-openssl11-libs-1:1.1.1w-3.2.el9.x86_64" }, "product_reference": "alt-openssl11-libs-1:1.1.1w-3.2.el9.x86_64", "relates_to_product_reference": "CentOS-9" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-libs-1:1.1.1w-3.1.el9.x86_64 as a component of Community Enterprise Operating System 9", "product_id": "CentOS-9:alt-openssl11-libs-1:1.1.1w-3.1.el9.x86_64" }, "product_reference": "alt-openssl11-libs-1:1.1.1w-3.1.el9.x86_64", "relates_to_product_reference": "CentOS-9" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-libs-1:1.1.1w-3.3.el9.x86_64 as a component of Community Enterprise Operating System 9", "product_id": "CentOS-9:alt-openssl11-libs-1:1.1.1w-3.3.el9.x86_64" }, "product_reference": "alt-openssl11-libs-1:1.1.1w-3.3.el9.x86_64", "relates_to_product_reference": "CentOS-9" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-1:1.1.1w-3.3.el9.x86_64 as a component of Community Enterprise Operating System 9", "product_id": "CentOS-9:alt-openssl11-1:1.1.1w-3.3.el9.x86_64" }, "product_reference": "alt-openssl11-1:1.1.1w-3.3.el9.x86_64", "relates_to_product_reference": "CentOS-9" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-1:1.1.1w-3.2.el9.x86_64 as a component of Community Enterprise Operating System 9", "product_id": "CentOS-9:alt-openssl11-1:1.1.1w-3.2.el9.x86_64" }, "product_reference": "alt-openssl11-1:1.1.1w-3.2.el9.x86_64", "relates_to_product_reference": "CentOS-9" }, { "category": "default_component_of", "full_product_name": { "name": "alt-openssl11-1:1.1.1w-3.1.el9.x86_64 as a component of Community Enterprise Operating System 9", "product_id": "CentOS-9:alt-openssl11-1:1.1.1w-3.1.el9.x86_64" }, "product_reference": "alt-openssl11-1:1.1.1w-3.1.el9.x86_64", "relates_to_product_reference": "CentOS-9" } ] }, "vulnerabilities": [ { "cve": "CVE-2021-4160", "notes": [ { "category": "description", "text": "There is a carry propagation bug in the MIPS32 and MIPS64 squaring procedure. Many EC algorithms are affected, including some of the TLS 1.3 default curves. Impact was not analyzed in detail, because the pre-requisites for attack are considered unlikely and include reusing private keys. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be significant. However, for an attack on TLS to be meaningful, the server would have to share the DH private key among multiple clients, which is no longer an option since CVE-2016-0701. This issue affects OpenSSL versions 1.0.2, 1.1.1 and 3.0.0. It was addressed in the releases of 1.1.1m and 3.0.1 on the 15th of December 2021. For the 1.0.2 release it is addressed in git commit 6fc1aaaf3 that is available to premium support customers only. It will be made available in 1.0.2zc when it is released. The issue only affects OpenSSL on MIPS platforms. Fixed in OpenSSL 3.0.1 (Affected 3.0.0). Fixed in OpenSSL 1.1.1m (Affected 1.1.1-1.1.1l). Fixed in OpenSSL 1.0.2zc-dev (Affected 1.0.2-1.0.2zb).", "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": { "fixed": [ "CentOS-9:alt-openssl11-1:1.1.1w-3.1.el9.x86_64", "CentOS-9:alt-openssl11-1:1.1.1w-3.2.el9.x86_64", "CentOS-9:alt-openssl11-1:1.1.1w-3.3.el9.x86_64", "CentOS-9:alt-openssl11-devel-1:1.1.1w-3.1.el9.x86_64", "CentOS-9:alt-openssl11-devel-1:1.1.1w-3.2.el9.x86_64", "CentOS-9:alt-openssl11-devel-1:1.1.1w-3.3.el9.x86_64", "CentOS-9:alt-openssl11-libs-1:1.1.1w-3.1.el9.x86_64", "CentOS-9:alt-openssl11-libs-1:1.1.1w-3.2.el9.x86_64", "CentOS-9:alt-openssl11-libs-1:1.1.1w-3.3.el9.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els-lang/cve/CVE-2021-4160" }, { "category": "external", "summary": "https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf" }, { "category": "external", "summary": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=3bf7b73ea7123045b8f972badc67ed6878e6c37f", "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=3bf7b73ea7123045b8f972badc67ed6878e6c37f" }, { "category": "external", "summary": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=6fc1aaaf303185aa5e483e06bdfae16daa9193a7", "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=6fc1aaaf303185aa5e483e06bdfae16daa9193a7" }, { "category": "external", "summary": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=e9e726506cd2a3fd9c0f12daf8cc1fe934c7dddb", "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=e9e726506cd2a3fd9c0f12daf8cc1fe934c7dddb" }, { "category": "external", "summary": "https://security.gentoo.org/glsa/202210-02", "url": "https://security.gentoo.org/glsa/202210-02" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20240621-0006/", "url": "https://security.netapp.com/advisory/ntap-20240621-0006/" }, { "category": "external", "summary": "https://www.debian.org/security/2022/dsa-5103", "url": "https://www.debian.org/security/2022/dsa-5103" }, { "category": "external", "summary": "https://www.openssl.org/news/secadv/20220128.txt", "url": "https://www.openssl.org/news/secadv/20220128.txt" }, { "category": "external", "summary": "https://www.oracle.com/security-alerts/cpuapr2022.html", "url": "https://www.oracle.com/security-alerts/cpuapr2022.html" }, { "category": "external", "summary": "https://www.oracle.com/security-alerts/cpujul2022.html", "url": "https://www.oracle.com/security-alerts/cpujul2022.html" } ], "release_date": "2022-01-28T22:15:00Z", "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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1" }, "products": [ "CentOS-9:alt-openssl11-1:1.1.1w-3.1.el9.x86_64", "CentOS-9:alt-openssl11-1:1.1.1w-3.2.el9.x86_64", "CentOS-9:alt-openssl11-1:1.1.1w-3.3.el9.x86_64", "CentOS-9:alt-openssl11-devel-1:1.1.1w-3.1.el9.x86_64", "CentOS-9:alt-openssl11-devel-1:1.1.1w-3.2.el9.x86_64", "CentOS-9:alt-openssl11-devel-1:1.1.1w-3.3.el9.x86_64", "CentOS-9:alt-openssl11-libs-1:1.1.1w-3.1.el9.x86_64", "CentOS-9:alt-openssl11-libs-1:1.1.1w-3.2.el9.x86_64", "CentOS-9:alt-openssl11-libs-1:1.1.1w-3.3.el9.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ] } ] }