{ "document":{ "aggregate_severity":{ "namespace":"https://nvd.nist.gov/vuln-metrics/cvss", "text":"Medium" }, "category":"csaf_vex", "csaf_version":"2.0", "distribution":{ "tlp":{ "label":"WHITE", "url":"https:/www.first.org/tlp/" } }, "lang":"en", "notes":[ { "text":"pam security update", "category":"general", "title":"Synopsis" }, { "text":"An update for pam is now available for openEuler-24.03-LTS-SP3", "category":"general", "title":"Summary" }, { "text":"PAM (Pluggable Authentication Modules) is a system of libraries that handle the authentication tasks of applications (services) on the system.\n\nSecurity Fix(es):\n\nLinux-PAM through 1.7.2 contains an observable timing discrepancy (CWE-208) in the pam_userdb module's plaintext-password comparison path in modules/pam_userdb/pam_userdb.c that allows a local or network-adjacent attacker able to repeatedly drive authentication through a calling service to recover the plaintext password of a target account by measuring response-timing differences. The comparison uses strncmp() (or strncasecmp() when PAM_ICASE_ARG is set) preceded by a length-equality check, so the time to reject a candidate depends on the index of the first differing byte and on whether the candidate's length matches the stored password, leaking the password length and individual prefix bytes. The vulnerable path is reached when the administrator configures pam_userdb with crypt=none, with an unrecognized crypt method, or without a crypt= argument, causing the module to store and compare credentials in plaintext.(CVE-2026-54411)", "category":"general", "title":"Description" }, { "text":"An update for pam is now available for openEuler-24.03-LTS-SP3.\n\nopenEuler Security has rated this update as having a security impact of medium. 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":"Medium", "category":"general", "title":"Severity" }, { "text":"pam", "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-2026-2903", "category":"self", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2903" }, { "summary":"CVE-2026-54411", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-54411&packageName=pam" }, { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54411" }, { "summary":"openEuler-SA-2026-2903 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/advisories/2026/csaf-openeuler-sa-2026-2903.json" } ], "title":"An update for pam is now available for openEuler-24.03-LTS-SP3", "tracking":{ "initial_release_date":"2026-07-13T11:35:18+08:00", "revision_history":[ { "date":"2026-07-13T11:35:18+08:00", "summary":"Initial", "number":"1.0.0" } ], "generator":{ "date":"2026-07-13T11:35:18+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2026-07-13T11:35:18+08:00", "id":"openEuler-SA-2026-2903", "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-SP3" }, "product_id":"openEuler-24.03-LTS-SP3", "name":"openEuler-24.03-LTS-SP3" }, "name":"openEuler-24.03-LTS-SP3", "category":"product_version" } ], "category":"product_name" }, { "name":"noarch", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3" }, "product_id":"pam-help-1.5.3-12.oe2403sp3.noarch.rpm", "name":"pam-help-1.5.3-12.oe2403sp3.noarch.rpm" }, "name":"pam-help-1.5.3-12.oe2403sp3.noarch.rpm", "category":"product_version" } ], "category":"architecture" }, { "name":"aarch64", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3" }, "product_id":"pam-1.5.3-12.oe2403sp3.aarch64.rpm", "name":"pam-1.5.3-12.oe2403sp3.aarch64.rpm" }, "name":"pam-1.5.3-12.oe2403sp3.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3" }, "product_id":"pam-debuginfo-1.5.3-12.oe2403sp3.aarch64.rpm", "name":"pam-debuginfo-1.5.3-12.oe2403sp3.aarch64.rpm" }, "name":"pam-debuginfo-1.5.3-12.oe2403sp3.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3" }, "product_id":"pam-debugsource-1.5.3-12.oe2403sp3.aarch64.rpm", "name":"pam-debugsource-1.5.3-12.oe2403sp3.aarch64.rpm" }, "name":"pam-debugsource-1.5.3-12.oe2403sp3.aarch64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3" }, "product_id":"pam-devel-1.5.3-12.oe2403sp3.aarch64.rpm", "name":"pam-devel-1.5.3-12.oe2403sp3.aarch64.rpm" }, "name":"pam-devel-1.5.3-12.oe2403sp3.aarch64.rpm", "category":"product_version" } ], "category":"architecture" }, { "name":"src", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3" }, "product_id":"pam-1.5.3-12.oe2403sp3.src.rpm", "name":"pam-1.5.3-12.oe2403sp3.src.rpm" }, "name":"pam-1.5.3-12.oe2403sp3.src.rpm", "category":"product_version" } ], "category":"architecture" }, { "name":"x86_64", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3" }, "product_id":"pam-1.5.3-12.oe2403sp3.x86_64.rpm", "name":"pam-1.5.3-12.oe2403sp3.x86_64.rpm" }, "name":"pam-1.5.3-12.oe2403sp3.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3" }, "product_id":"pam-debuginfo-1.5.3-12.oe2403sp3.x86_64.rpm", "name":"pam-debuginfo-1.5.3-12.oe2403sp3.x86_64.rpm" }, "name":"pam-debuginfo-1.5.3-12.oe2403sp3.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3" }, "product_id":"pam-debugsource-1.5.3-12.oe2403sp3.x86_64.rpm", "name":"pam-debugsource-1.5.3-12.oe2403sp3.x86_64.rpm" }, "name":"pam-debugsource-1.5.3-12.oe2403sp3.x86_64.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3" }, "product_id":"pam-devel-1.5.3-12.oe2403sp3.x86_64.rpm", "name":"pam-devel-1.5.3-12.oe2403sp3.x86_64.rpm" }, "name":"pam-devel-1.5.3-12.oe2403sp3.x86_64.rpm", "category":"product_version" } ], "category":"architecture" } ] } ], "relationships":[ { "relates_to_product_reference":"openEuler-24.03-LTS-SP3", "product_reference":"pam-help-1.5.3-12.oe2403sp3.noarch.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP3:pam-help-1.5.3-12.oe2403sp3.noarch", "name":"pam-help-1.5.3-12.oe2403sp3.noarch as a component of openEuler-24.03-LTS-SP3" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP3", "product_reference":"pam-1.5.3-12.oe2403sp3.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP3:pam-1.5.3-12.oe2403sp3.aarch64", "name":"pam-1.5.3-12.oe2403sp3.aarch64 as a component of openEuler-24.03-LTS-SP3" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP3", "product_reference":"pam-debuginfo-1.5.3-12.oe2403sp3.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP3:pam-debuginfo-1.5.3-12.oe2403sp3.aarch64", "name":"pam-debuginfo-1.5.3-12.oe2403sp3.aarch64 as a component of openEuler-24.03-LTS-SP3" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP3", "product_reference":"pam-debugsource-1.5.3-12.oe2403sp3.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP3:pam-debugsource-1.5.3-12.oe2403sp3.aarch64", "name":"pam-debugsource-1.5.3-12.oe2403sp3.aarch64 as a component of openEuler-24.03-LTS-SP3" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP3", "product_reference":"pam-devel-1.5.3-12.oe2403sp3.aarch64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP3:pam-devel-1.5.3-12.oe2403sp3.aarch64", "name":"pam-devel-1.5.3-12.oe2403sp3.aarch64 as a component of openEuler-24.03-LTS-SP3" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP3", "product_reference":"pam-1.5.3-12.oe2403sp3.src.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP3:pam-1.5.3-12.oe2403sp3.src", "name":"pam-1.5.3-12.oe2403sp3.src as a component of openEuler-24.03-LTS-SP3" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP3", "product_reference":"pam-1.5.3-12.oe2403sp3.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP3:pam-1.5.3-12.oe2403sp3.x86_64", "name":"pam-1.5.3-12.oe2403sp3.x86_64 as a component of openEuler-24.03-LTS-SP3" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP3", "product_reference":"pam-debuginfo-1.5.3-12.oe2403sp3.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP3:pam-debuginfo-1.5.3-12.oe2403sp3.x86_64", "name":"pam-debuginfo-1.5.3-12.oe2403sp3.x86_64 as a component of openEuler-24.03-LTS-SP3" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP3", "product_reference":"pam-debugsource-1.5.3-12.oe2403sp3.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP3:pam-debugsource-1.5.3-12.oe2403sp3.x86_64", "name":"pam-debugsource-1.5.3-12.oe2403sp3.x86_64 as a component of openEuler-24.03-LTS-SP3" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-24.03-LTS-SP3", "product_reference":"pam-devel-1.5.3-12.oe2403sp3.x86_64.rpm", "full_product_name":{ "product_id":"openEuler-24.03-LTS-SP3:pam-devel-1.5.3-12.oe2403sp3.x86_64", "name":"pam-devel-1.5.3-12.oe2403sp3.x86_64 as a component of openEuler-24.03-LTS-SP3" }, "category":"default_component_of" } ] }, "vulnerabilities":[ { "cve":"CVE-2026-54411", "notes":[ { "text":"Linux-PAM through 1.7.2 contains an observable timing discrepancy (CWE-208) in the pam_userdb module's plaintext-password comparison path in modules/pam_userdb/pam_userdb.c that allows a local or network-adjacent attacker able to repeatedly drive authentication through a calling service to recover the plaintext password of a target account by measuring response-timing differences. The comparison uses strncmp() (or strncasecmp() when PAM_ICASE_ARG is set) preceded by a length-equality check, so the time to reject a candidate depends on the index of the first differing byte and on whether the candidate's length matches the stored password, leaking the password length and individual prefix bytes. The vulnerable path is reached when the administrator configures pam_userdb with crypt=none, with an unrecognized crypt method, or without a crypt= argument, causing the module to store and compare credentials in plaintext.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-24.03-LTS-SP3:pam-help-1.5.3-12.oe2403sp3.noarch", "openEuler-24.03-LTS-SP3:pam-1.5.3-12.oe2403sp3.aarch64", "openEuler-24.03-LTS-SP3:pam-debuginfo-1.5.3-12.oe2403sp3.aarch64", "openEuler-24.03-LTS-SP3:pam-debugsource-1.5.3-12.oe2403sp3.aarch64", "openEuler-24.03-LTS-SP3:pam-devel-1.5.3-12.oe2403sp3.aarch64", "openEuler-24.03-LTS-SP3:pam-1.5.3-12.oe2403sp3.src", "openEuler-24.03-LTS-SP3:pam-1.5.3-12.oe2403sp3.x86_64", "openEuler-24.03-LTS-SP3:pam-debuginfo-1.5.3-12.oe2403sp3.x86_64", "openEuler-24.03-LTS-SP3:pam-debugsource-1.5.3-12.oe2403sp3.x86_64", "openEuler-24.03-LTS-SP3:pam-devel-1.5.3-12.oe2403sp3.x86_64" ] }, "remediations":[ { "product_ids":[ "openEuler-24.03-LTS-SP3:pam-help-1.5.3-12.oe2403sp3.noarch", "openEuler-24.03-LTS-SP3:pam-1.5.3-12.oe2403sp3.aarch64", "openEuler-24.03-LTS-SP3:pam-debuginfo-1.5.3-12.oe2403sp3.aarch64", "openEuler-24.03-LTS-SP3:pam-debugsource-1.5.3-12.oe2403sp3.aarch64", "openEuler-24.03-LTS-SP3:pam-devel-1.5.3-12.oe2403sp3.aarch64", "openEuler-24.03-LTS-SP3:pam-1.5.3-12.oe2403sp3.src", "openEuler-24.03-LTS-SP3:pam-1.5.3-12.oe2403sp3.x86_64", "openEuler-24.03-LTS-SP3:pam-debuginfo-1.5.3-12.oe2403sp3.x86_64", "openEuler-24.03-LTS-SP3:pam-debugsource-1.5.3-12.oe2403sp3.x86_64", "openEuler-24.03-LTS-SP3:pam-devel-1.5.3-12.oe2403sp3.x86_64" ], "details":"pam security update", "category":"vendor_fix", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2903" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"MEDIUM", "baseScore":6.9, "vectorString":"CVSS:3.1/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/AU:N/V:D", "version":"3.1" }, "products":[ "openEuler-24.03-LTS-SP3:pam-help-1.5.3-12.oe2403sp3.noarch", "openEuler-24.03-LTS-SP3:pam-1.5.3-12.oe2403sp3.aarch64", "openEuler-24.03-LTS-SP3:pam-debuginfo-1.5.3-12.oe2403sp3.aarch64", "openEuler-24.03-LTS-SP3:pam-debugsource-1.5.3-12.oe2403sp3.aarch64", "openEuler-24.03-LTS-SP3:pam-devel-1.5.3-12.oe2403sp3.aarch64", "openEuler-24.03-LTS-SP3:pam-1.5.3-12.oe2403sp3.src", "openEuler-24.03-LTS-SP3:pam-1.5.3-12.oe2403sp3.x86_64", "openEuler-24.03-LTS-SP3:pam-debuginfo-1.5.3-12.oe2403sp3.x86_64", "openEuler-24.03-LTS-SP3:pam-debugsource-1.5.3-12.oe2403sp3.x86_64", "openEuler-24.03-LTS-SP3:pam-devel-1.5.3-12.oe2403sp3.x86_64" ] } ], "threats":[ { "details":"Medium", "category":"impact" } ], "title":"CVE-2026-54411" } ] }