{ "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":"shim security update", "category":"general", "title":"Synopsis" }, { "text":"An update for shim is now available for openEuler-20.03-LTS-SP1.", "category":"general", "title":"Summary" }, { "text":"Initial UEFI bootloader that handles chaining to a trusted full \\ bootloader under secure boot environments.\n\nSecurity Fix(es):\n\nApplications that use a non-default option when verifying certificates may be\nvulnerable to an attack from a malicious CA to circumvent certain checks.\n\nInvalid certificate policies in leaf certificates are silently ignored by\nOpenSSL and other certificate policy checks are skipped for that certificate.\nA malicious CA could use this to deliberately assert invalid certificate policies\nin order to circumvent policy checking on the certificate altogether.\n\nPolicy processing is disabled by default but can be enabled by passing\nthe `-policy' argument to the command line utilities or by calling the\n`X509_VERIFY_PARAM_set1_policies()' function.(CVE-2023-0465)\n\nIssue summary: Processing some specially crafted ASN.1 object identifiers or\ndata containing them may be very slow.\n\nImpact summary: Applications that use OBJ_obj2txt() directly, or use any of\nthe OpenSSL subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS with no message\nsize limit may experience notable to very long delays when processing those\nmessages, which may lead to a Denial of Service.\n\nAn OBJECT IDENTIFIER is composed of a series of numbers - sub-identifiers -\nmost of which have no size limit. OBJ_obj2txt() may be used to translate\nan ASN.1 OBJECT IDENTIFIER given in DER encoding form (using the OpenSSL\ntype ASN1_OBJECT) to its canonical numeric text form, which are the\nsub-identifiers of the OBJECT IDENTIFIER in decimal form, separated by\nperiods.\n\nWhen one of the sub-identifiers in the OBJECT IDENTIFIER is very large\n(these are sizes that are seen as absurdly large, taking up tens or hundreds\nof KiBs), the translation to a decimal number in text may take a very long\ntime. The time complexity is O(n^2) with 'n' being the size of the\nsub-identifiers in bytes (*).\n\nWith OpenSSL 3.0, support to fetch cryptographic algorithms using names /\nidentifiers in string form was introduced. This includes using OBJECT\nIDENTIFIERs in canonical numeric text form as identifiers for fetching\nalgorithms.\n\nSuch OBJECT IDENTIFIERs may be received through the ASN.1 structure\nAlgorithmIdentifier, which is commonly used in multiple protocols to specify\nwhat cryptographic algorithm should be used to sign or verify, encrypt or\ndecrypt, or digest passed data.\n\nApplications that call OBJ_obj2txt() directly with untrusted data are\naffected, with any version of OpenSSL. If the use is for the mere purpose\nof display, the severity is considered low.\n\nIn OpenSSL 3.0 and newer, this affects the subsystems OCSP, PKCS7/SMIME,\nCMS, CMP/CRMF or TS. It also impacts anything that processes X.509\ncertificates, including simple things like verifying its signature.\n\nThe impact on TLS is relatively low, because all versions of OpenSSL have a\n100KiB limit on the peer's certificate chain. Additionally, this only\nimpacts clients, or servers that have explicitly enabled client\nauthentication.\n\nIn OpenSSL 1.1.1 and 1.0.2, this only affects displaying diverse objects,\nsuch as X.509 certificates. This is assumed to not happen in such a way\nthat it would cause a Denial of Service, so these versions are considered\nnot affected by this issue in such a way that it would be cause for concern,\nand the severity is therefore considered low.(CVE-2023-2650)\n\nIssue summary: Checking excessively long DH keys or parameters may be very slow.\n\nImpact summary: Applications that use the functions DH_check(), DH_check_ex()\nor EVP_PKEY_param_check() to check a DH key or DH parameters may experience long\ndelays. Where the key or parameters that are being checked have been obtained\nfrom an untrusted source this may lead to a Denial of Service.\n\nThe function DH_check() performs various checks on DH parameters. One of those\nchecks confirms that the modulus ('p' parameter) is not too large. Trying to use\na very large modulus is slow and OpenSSL will not normally use a modulus which\nis over 10,000 bits in length.\n\nHowever the DH_check() function checks numerous aspects of the key or parameters\nthat have been supplied. Some of those checks use the supplied modulus value\neven if it has already been found to be too large.\n\nAn application that calls DH_check() and supplies a key or parameters obtained\nfrom an untrusted source could be vulernable to a Denial of Service attack.\n\nThe function DH_check() is itself called by a number of other OpenSSL functions.\nAn application calling any of those other functions may similarly be affected.\nThe other functions affected by this are DH_check_ex() and\nEVP_PKEY_param_check().\n\nAlso vulnerable are the OpenSSL dhparam and pkeyparam command line applications\nwhen using the '-check' option.\n\nThe OpenSSL SSL/TLS implementation is not affected by this issue.\nThe OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.(CVE-2023-3446)", "category":"general", "title":"Description" }, { "text":"An update for shim is now available for openEuler-20.03-LTS-SP1.\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":"shim", "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-2024-1227", "category":"self", "url":"https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1227" }, { "summary":"CVE-2023-0465", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail?cveId=CVE-2023-0465&packageName=shim" }, { "summary":"CVE-2023-2650", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail?cveId=CVE-2023-2650&packageName=shim" }, { "summary":"CVE-2023-3446", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail?cveId=CVE-2023-3446&packageName=shim" }, { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0465" }, { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2023-2650" }, { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3446" }, { "summary":"openEuler-SA-2024-1227 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/advisories/2024/csaf-openeuler-sa-2024-1227.json" } ], "title":"An update for shim is now available for openEuler-20.03-LTS-SP1", "tracking":{ "initial_release_date":"2024-03-01T09:12:16+08:00", "revision_history":[ { "date":"2024-03-01T09:12:16+08:00", "summary":"Initial", "number":"1.0.0" }, { "date":"2024-10-31T09:12:16+08:00", "summary":"final", "number":"2.0.0" } ], "generator":{ "date":"2024-10-31T09:12:16+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2024-10-31T09:12:16+08:00", "id":"openEuler-SA-2024-1227", "version":"2.0.0", "status":"final" } }, "product_tree":{ "branches":[ { "name":"openEuler", "category":"vendor", "branches":[ { "name":"openEuler", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP1" }, "product_id":"openEuler-20.03-LTS-SP1", "name":"openEuler-20.03-LTS-SP1" }, "name":"openEuler-20.03-LTS-SP1", "category":"product_version" } ], "category":"product_name" }, { "name":"aarch64", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP1" }, "product_id":"shim-15-29.oe1.aarch64.rpm(20.03-LTS-SP1)", "name":"shim-15-29.oe1.aarch64.rpm" }, "name":"shim-15-29.oe1.aarch64.rpm", "category":"product_version" } ], "category":"architecture" }, { "name":"noarch", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP1" }, "product_id":"shim-debugsource-15-29.oe1.noarch.rpm(20.03-LTS-SP1)", "name":"shim-debugsource-15-29.oe1.noarch.rpm" }, "name":"shim-debugsource-15-29.oe1.noarch.rpm", "category":"product_version" }, { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP1" }, "product_id":"shim-debuginfo-15-29.oe1.noarch.rpm(20.03-LTS-SP1)", "name":"shim-debuginfo-15-29.oe1.noarch.rpm" }, "name":"shim-debuginfo-15-29.oe1.noarch.rpm", "category":"product_version" } ], "category":"architecture" }, { "name":"src", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP1" }, "product_id":"shim-15-29.oe1.src.rpm(20.03-LTS-SP1)", "name":"shim-15-29.oe1.src.rpm" }, "name":"shim-15-29.oe1.src.rpm", "category":"product_version" } ], "category":"architecture" }, { "name":"x86_64", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP1" }, "product_id":"shim-15-29.oe1.x86_64.rpm(20.03-LTS-SP1)", "name":"shim-15-29.oe1.x86_64.rpm" }, "name":"shim-15-29.oe1.x86_64.rpm", "category":"product_version" } ], "category":"architecture" } ] } ], "relationships":[ { "relates_to_product_reference":"openEuler-20.03-LTS-SP1", "product_reference":"shim-15-29.oe1.aarch64.rpm(20.03-LTS-SP1)", "full_product_name":{ "product_id":"openEuler-20.03-LTS-SP1:shim-15-29.oe1.aarch64", "name":"shim-15-29.oe1.aarch64 as a component of openEuler-20.03-LTS-SP1" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-20.03-LTS-SP1", "product_reference":"shim-debugsource-15-29.oe1.noarch.rpm(20.03-LTS-SP1)", "full_product_name":{ "product_id":"openEuler-20.03-LTS-SP1:shim-debugsource-15-29.oe1.noarch", "name":"shim-debugsource-15-29.oe1.noarch as a component of openEuler-20.03-LTS-SP1" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-20.03-LTS-SP1", "product_reference":"shim-debuginfo-15-29.oe1.noarch.rpm(20.03-LTS-SP1)", "full_product_name":{ "product_id":"openEuler-20.03-LTS-SP1:shim-debuginfo-15-29.oe1.noarch", "name":"shim-debuginfo-15-29.oe1.noarch as a component of openEuler-20.03-LTS-SP1" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-20.03-LTS-SP1", "product_reference":"shim-15-29.oe1.src.rpm(20.03-LTS-SP1)", "full_product_name":{ "product_id":"openEuler-20.03-LTS-SP1:shim-15-29.oe1.src", "name":"shim-15-29.oe1.src as a component of openEuler-20.03-LTS-SP1" }, "category":"default_component_of" }, { "relates_to_product_reference":"openEuler-20.03-LTS-SP1", "product_reference":"shim-15-29.oe1.x86_64.rpm(20.03-LTS-SP1)", "full_product_name":{ "product_id":"openEuler-20.03-LTS-SP1:shim-15-29.oe1.x86_64", "name":"shim-15-29.oe1.x86_64 as a component of openEuler-20.03-LTS-SP1" }, "category":"default_component_of" } ] }, "vulnerabilities":[ { "cve":"CVE-2023-0465", "notes":[ { "text":"Applications that use a non-default option when verifying certificates may bevulnerable to an attack from a malicious CA to circumvent certain checks.Invalid certificate policies in leaf certificates are silently ignored byOpenSSL and other certificate policy checks are skipped for that certificate.A malicious CA could use this to deliberately assert invalid certificate policiesin order to circumvent policy checking on the certificate altogether.Policy processing is disabled by default but can be enabled by passingthe `-policy argument to the command line utilities or by calling the`X509_VERIFY_PARAM_set1_policies() function.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-20.03-LTS-SP1:shim-15-29.oe1.aarch64", "openEuler-20.03-LTS-SP1:shim-debugsource-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-debuginfo-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.src", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.x86_64" ] }, "remediations":[ { "product_ids":[ "openEuler-20.03-LTS-SP1:shim-15-29.oe1.aarch64", "openEuler-20.03-LTS-SP1:shim-debugsource-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-debuginfo-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.src", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.x86_64" ], "details":"shim security update", "category":"vendor_fix", "url":"https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1227" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"MEDIUM", "baseScore":5.3, "vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version":"3.1" }, "products":[ "openEuler-20.03-LTS-SP1:shim-15-29.oe1.aarch64", "openEuler-20.03-LTS-SP1:shim-debugsource-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-debuginfo-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.src", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.x86_64" ] } ], "threats":[ { "details":"Medium", "category":"impact" } ], "title":"CVE-2023-0465" }, { "cve":"CVE-2023-2650", "notes":[ { "text":"Issue summary: Processing some specially crafted ASN.1 object identifiers ordata containing them may be very slow.Impact summary: Applications that use OBJ_obj2txt() directly, or use any ofthe OpenSSL subsystems OCSP, PKCS7/SMIME, CMS, CMP/CRMF or TS with no messagesize limit may experience notable to very long delays when processing thosemessages, which may lead to a Denial of Service.An OBJECT IDENTIFIER is composed of a series of numbers - sub-identifiers -most of which have no size limit. OBJ_obj2txt() may be used to translatean ASN.1 OBJECT IDENTIFIER given in DER encoding form (using the OpenSSLtype ASN1_OBJECT) to its canonical numeric text form, which are thesub-identifiers of the OBJECT IDENTIFIER in decimal form, separated byperiods.When one of the sub-identifiers in the OBJECT IDENTIFIER is very large(these are sizes that are seen as absurdly large, taking up tens or hundredsof KiBs), the translation to a decimal number in text may take a very longtime. The time complexity is O(n^2) with n being the size of thesub-identifiers in bytes (*).With OpenSSL 3.0, support to fetch cryptographic algorithms using names /identifiers in string form was introduced. This includes using OBJECTIDENTIFIERs in canonical numeric text form as identifiers for fetchingalgorithms.Such OBJECT IDENTIFIERs may be received through the ASN.1 structureAlgorithmIdentifier, which is commonly used in multiple protocols to specifywhat cryptographic algorithm should be used to sign or verify, encrypt ordecrypt, or digest passed data.Applications that call OBJ_obj2txt() directly with untrusted data areaffected, with any version of OpenSSL. If the use is for the mere purposeof display, the severity is considered low.In OpenSSL 3.0 and newer, this affects the subsystems OCSP, PKCS7/SMIME,CMS, CMP/CRMF or TS. It also impacts anything that processes X.509certificates, including simple things like verifying its signature.The impact on TLS is relatively low, because all versions of OpenSSL have a100KiB limit on the peer s certificate chain. Additionally, this onlyimpacts clients, or servers that have explicitly enabled clientauthentication.In OpenSSL 1.1.1 and 1.0.2, this only affects displaying diverse objects,such as X.509 certificates. This is assumed to not happen in such a waythat it would cause a Denial of Service, so these versions are considerednot affected by this issue in such a way that it would be cause for concern,and the severity is therefore considered low.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-20.03-LTS-SP1:shim-15-29.oe1.aarch64", "openEuler-20.03-LTS-SP1:shim-debugsource-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-debuginfo-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.src", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.x86_64" ] }, "remediations":[ { "product_ids":[ "openEuler-20.03-LTS-SP1:shim-15-29.oe1.aarch64", "openEuler-20.03-LTS-SP1:shim-debugsource-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-debuginfo-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.src", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.x86_64" ], "details":"shim security update", "category":"vendor_fix", "url":"https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1227" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"MEDIUM", "baseScore":6.5, "vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version":"3.1" }, "products":[ "openEuler-20.03-LTS-SP1:shim-15-29.oe1.aarch64", "openEuler-20.03-LTS-SP1:shim-debugsource-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-debuginfo-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.src", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.x86_64" ] } ], "threats":[ { "details":"Medium", "category":"impact" } ], "title":"CVE-2023-2650" }, { "cve":"CVE-2023-3446", "notes":[ { "text":"Issue summary: Checking excessively long DH keys or parameters may be very slow.Impact summary: Applications that use the functions DH_check(), DH_check_ex()or EVP_PKEY_param_check() to check a DH key or DH parameters may experience longdelays. Where the key or parameters that are being checked have been obtainedfrom an untrusted source this may lead to a Denial of Service.The function DH_check() performs various checks on DH parameters. One of thosechecks confirms that the modulus ( p parameter) is not too large. Trying to usea very large modulus is slow and OpenSSL will not normally use a modulus whichis over 10,000 bits in length.However the DH_check() function checks numerous aspects of the key or parametersthat have been supplied. Some of those checks use the supplied modulus valueeven if it has already been found to be too large.An application that calls DH_check() and supplies a key or parameters obtainedfrom an untrusted source could be vulernable to a Denial of Service attack.The function DH_check() is itself called by a number of other OpenSSL functions.An application calling any of those other functions may similarly be affected.The other functions affected by this are DH_check_ex() andEVP_PKEY_param_check().Also vulnerable are the OpenSSL dhparam and pkeyparam command line applicationswhen using the -check option.The OpenSSL SSL/TLS implementation is not affected by this issue.The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-20.03-LTS-SP1:shim-15-29.oe1.aarch64", "openEuler-20.03-LTS-SP1:shim-debugsource-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-debuginfo-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.src", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.x86_64" ] }, "remediations":[ { "product_ids":[ "openEuler-20.03-LTS-SP1:shim-15-29.oe1.aarch64", "openEuler-20.03-LTS-SP1:shim-debugsource-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-debuginfo-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.src", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.x86_64" ], "details":"shim security update", "category":"vendor_fix", "url":"https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1227" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"MEDIUM", "baseScore":5.3, "vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version":"3.1" }, "products":[ "openEuler-20.03-LTS-SP1:shim-15-29.oe1.aarch64", "openEuler-20.03-LTS-SP1:shim-debugsource-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-debuginfo-15-29.oe1.noarch", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.src", "openEuler-20.03-LTS-SP1:shim-15-29.oe1.x86_64" ] } ], "threats":[ { "details":"Medium", "category":"impact" } ], "title":"CVE-2023-3446" } ] }