{ "document":{ "aggregate_severity":{ "namespace":"https://nvd.nist.gov/vuln-metrics/cvss", "text":"Critical" }, "category":"csaf_vex", "csaf_version":"2.0", "distribution":{ "tlp":{ "label":"WHITE", "url":"https:/www.first.org/tlp/" } }, "lang":"en", "notes":[ { "text":"socat security update", "category":"general", "title":"Synopsis" }, { "text":"An update for socat is now available for openEuler-24.03-LTS-SP1", "category":"general", "title":"Summary" }, { "text":"Socat is a relay for bidirectional data transfer between two independent data channels. Each of these data channels may be a file, pipe, device (serial line etc. or a pseudo terminal), a socket (UNIX, IP4, IP6 - raw, UDP, TCP), an SSL socket, proxy CONNECT connection, a file descriptor (stdin etc.), the GNU line editor (readline), a program, or a combination of two of these.\n\nSecurity Fix(es):\n\nsocat versions 1.8.0.0 through 1.8.1.1 contain a heap-based buffer overflow vulnerability that allows a malicious SOCKS5 proxy server to overwrite adjacent heap memory by exploiting a sign-extension flaw in the DOMAINNAME reply parser. During connection setup, the domain name length byte is read through a signed char field causing a negative bytes_to_read value that is implicitly converted to size_t, resulting in an unbounded heap write into the 262-byte reply buffer with attacker-controlled size and content.(CVE-2026-56123)", "category":"general", "title":"Description" }, { "text":"An update for socat is now available for openEuler-24.03-LTS-SP1.\n\nopenEuler Security has rated this update as having a security impact of critical. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.", "category":"general", "title":"Topic" }, { "text":"Critical", "category":"general", "title":"Severity" }, { "text":"socat", "category":"general", "title":"Affected Component" } ], "publisher":{ "issuing_authority":"openEuler security committee", "name":"openEuler", "namespace":"https://www.openeuler.org", "contact_details":"openeuler-security@openeuler.org", "category":"vendor" }, "references":[ { "summary":"openEuler-SA-2026-2943", "category":"self", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2943" }, { "summary":"CVE-2026-56123", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-56123&packageName=socat" }, { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56123" }, { "summary":"openEuler-SA-2026-2943 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/advisories/2026/csaf-openeuler-sa-2026-2943.json" } ], "title":"An update for socat is now available for openEuler-24.03-LTS-SP1", "tracking":{ "initial_release_date":"2026-07-13T11:35:24+08:00", "revision_history":[ { "date":"2026-07-13T11:35:24+08:00", "summary":"Initial", "number":"1.0.0" } ], "generator":{ "date":"2026-07-13T11:35:24+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2026-07-13T11:35:24+08:00", "id":"openEuler-SA-2026-2943", "version":"1.0.0", "status":"final" } }, "product_tree":{ "branches":[ { "name":"openEuler", "category":"vendor", "branches":[ { "name":"openEuler", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1" }, "product_id":"openEuler-24.03-LTS-SP1", "name":"openEuler-24.03-LTS-SP1" }, "name":"openEuler-24.03-LTS-SP1", "category":"product_version" } ], "category":"product_name" }, { "name":"aarch64", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1" }, "product_id":"socat-1.8.1.3-1.oe2403sp1.aarch64.rpm", "name":"socat-1.8.1.3-1.oe2403sp1.aarch64.rpm" }, "name":"socat-1.8.1.3-1.oe2403sp1.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1" }, "product_id":"socat-debuginfo-1.8.1.3-1.oe2403sp1.aarch64.rpm", "name":"socat-debuginfo-1.8.1.3-1.oe2403sp1.aarch64.rpm" }, "name":"socat-debuginfo-1.8.1.3-1.oe2403sp1.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1" }, "product_id":"socat-debugsource-1.8.1.3-1.oe2403sp1.aarch64.rpm", "name":"socat-debugsource-1.8.1.3-1.oe2403sp1.aarch64.rpm" }, "name":"socat-debugsource-1.8.1.3-1.oe2403sp1.aarch64.rpm", "category":"product_version" } ], "category":"architecture" }, { "name":"src", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1" }, "product_id":"socat-1.8.1.3-1.oe2403sp1.src.rpm", "name":"socat-1.8.1.3-1.oe2403sp1.src.rpm" }, "name":"socat-1.8.1.3-1.oe2403sp1.src.rpm", "category":"product_version" } ], "category":"architecture" }, { "name":"x86_64", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1" }, "product_id":"socat-1.8.1.3-1.oe2403sp1.x86_64.rpm", "name":"socat-1.8.1.3-1.oe2403sp1.x86_64.rpm" }, "name":"socat-1.8.1.3-1.oe2403sp1.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1" }, "product_id":"socat-debuginfo-1.8.1.3-1.oe2403sp1.x86_64.rpm", "name":"socat-debuginfo-1.8.1.3-1.oe2403sp1.x86_64.rpm" }, "name":"socat-debuginfo-1.8.1.3-1.oe2403sp1.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1" }, "product_id":"socat-debugsource-1.8.1.3-1.oe2403sp1.x86_64.rpm", "name":"socat-debugsource-1.8.1.3-1.oe2403sp1.x86_64.rpm" }, "name":"socat-debugsource-1.8.1.3-1.oe2403sp1.x86_64.rpm", "category":"product_version" } ], "category":"architecture" }, { "name":"noarch", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP1" }, "product_id":"socat-help-1.8.1.3-1.oe2403sp1.noarch.rpm", "name":"socat-help-1.8.1.3-1.oe2403sp1.noarch.rpm" }, "name":"socat-help-1.8.1.3-1.oe2403sp1.noarch.rpm", "category":"product_version" } ], "category":"architecture" } ] } ], "relationships":[ { "relates_to_product_reference":"openEuler-24.03-LTS-SP1", "product_reference":"socat-1.8.1.3-1.oe2403sp1.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP1:socat-1.8.1.3-1.oe2403sp1.aarch64", "name":"socat-1.8.1.3-1.oe2403sp1.aarch64 as a component of openEuler-24.03-LTS-SP1" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP1", "product_reference":"socat-debuginfo-1.8.1.3-1.oe2403sp1.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP1:socat-debuginfo-1.8.1.3-1.oe2403sp1.aarch64", "name":"socat-debuginfo-1.8.1.3-1.oe2403sp1.aarch64 as a component of openEuler-24.03-LTS-SP1" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP1", "product_reference":"socat-debugsource-1.8.1.3-1.oe2403sp1.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP1:socat-debugsource-1.8.1.3-1.oe2403sp1.aarch64", "name":"socat-debugsource-1.8.1.3-1.oe2403sp1.aarch64 as a component of openEuler-24.03-LTS-SP1" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP1", "product_reference":"socat-1.8.1.3-1.oe2403sp1.src.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP1:socat-1.8.1.3-1.oe2403sp1.src", "name":"socat-1.8.1.3-1.oe2403sp1.src as a component of openEuler-24.03-LTS-SP1" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP1", "product_reference":"socat-1.8.1.3-1.oe2403sp1.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP1:socat-1.8.1.3-1.oe2403sp1.x86_64", "name":"socat-1.8.1.3-1.oe2403sp1.x86_64 as a component of openEuler-24.03-LTS-SP1" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP1", "product_reference":"socat-debuginfo-1.8.1.3-1.oe2403sp1.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP1:socat-debuginfo-1.8.1.3-1.oe2403sp1.x86_64", "name":"socat-debuginfo-1.8.1.3-1.oe2403sp1.x86_64 as a component of openEuler-24.03-LTS-SP1" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP1", "product_reference":"socat-debugsource-1.8.1.3-1.oe2403sp1.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP1:socat-debugsource-1.8.1.3-1.oe2403sp1.x86_64", "name":"socat-debugsource-1.8.1.3-1.oe2403sp1.x86_64 as a component of openEuler-24.03-LTS-SP1" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP1", "product_reference":"socat-help-1.8.1.3-1.oe2403sp1.noarch.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP1:socat-help-1.8.1.3-1.oe2403sp1.noarch", "name":"socat-help-1.8.1.3-1.oe2403sp1.noarch as a component of openEuler-24.03-LTS-SP1" }, "category":"default_component_of" } ] }, "vulnerabilities":[ { "cve":"CVE-2026-56123", "notes":[ { "text":"socat versions 1.8.0.0 through 1.8.1.1 contain a heap-based buffer overflow vulnerability that allows a malicious SOCKS5 proxy server to overwrite adjacent heap memory by exploiting a sign-extension flaw in the DOMAINNAME reply parser. During connection setup, the domain name length byte is read through a signed char field causing a negative bytes_to_read value that is implicitly converted to size_t, resulting in an unbounded heap write into the 262-byte reply buffer with attacker-controlled size and content.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-24.03-LTS-SP1:socat-1.8.1.3-1.oe2403sp1.aarch64", "openEuler-24.03-LTS-SP1:socat-debuginfo-1.8.1.3-1.oe2403sp1.aarch64", "openEuler-24.03-LTS-SP1:socat-debugsource-1.8.1.3-1.oe2403sp1.aarch64", "openEuler-24.03-LTS-SP1:socat-1.8.1.3-1.oe2403sp1.src", "openEuler-24.03-LTS-SP1:socat-1.8.1.3-1.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:socat-debuginfo-1.8.1.3-1.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:socat-debugsource-1.8.1.3-1.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:socat-help-1.8.1.3-1.oe2403sp1.noarch" ] }, "remediations":[ { "product_ids":[ "openEuler-24.03-LTS-SP1:socat-1.8.1.3-1.oe2403sp1.aarch64", "openEuler-24.03-LTS-SP1:socat-debuginfo-1.8.1.3-1.oe2403sp1.aarch64", "openEuler-24.03-LTS-SP1:socat-debugsource-1.8.1.3-1.oe2403sp1.aarch64", "openEuler-24.03-LTS-SP1:socat-1.8.1.3-1.oe2403sp1.src", "openEuler-24.03-LTS-SP1:socat-1.8.1.3-1.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:socat-debuginfo-1.8.1.3-1.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:socat-debugsource-1.8.1.3-1.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:socat-help-1.8.1.3-1.oe2403sp1.noarch" ], "details":"socat security update", "category":"vendor_fix", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2943" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"CRITICAL", "baseScore":9.8, "vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version":"3.1" }, "products":[ "openEuler-24.03-LTS-SP1:socat-1.8.1.3-1.oe2403sp1.aarch64", "openEuler-24.03-LTS-SP1:socat-debuginfo-1.8.1.3-1.oe2403sp1.aarch64", "openEuler-24.03-LTS-SP1:socat-debugsource-1.8.1.3-1.oe2403sp1.aarch64", "openEuler-24.03-LTS-SP1:socat-1.8.1.3-1.oe2403sp1.src", "openEuler-24.03-LTS-SP1:socat-1.8.1.3-1.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:socat-debuginfo-1.8.1.3-1.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:socat-debugsource-1.8.1.3-1.oe2403sp1.x86_64", "openEuler-24.03-LTS-SP1:socat-help-1.8.1.3-1.oe2403sp1.noarch" ] } ], "threats":[ { "details":"Critical", "category":"impact" } ], "title":"CVE-2026-56123" } ] }