{ "document":{ "aggregate_severity":{ "namespace":"https://nvd.nist.gov/vuln-metrics/cvss", "text":"High" }, "category":"csaf_vex", "csaf_version":"2.0", "distribution":{ "tlp":{ "label":"WHITE", "url":"https:/www.first.org/tlp/" } }, "lang":"en", "notes":[ { "text":"kernel security update", "category":"general", "title":"Synopsis" }, { "text":"An update for kernel is now available for openEuler-20.03-LTS-SP1.", "category":"general", "title":"Summary" }, { "text":"The Linux Kernel, the operating system core itself.\n\nSecurity Fix(es):\n\nA use-after-free vulnerability in the Linux kernel's net/sched: cls_route component can be exploited to achieve local privilege escalation.\n\nWhen route4_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.\n\nWe recommend upgrading past commit b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8.\n\n(CVE-2023-4206)\n\nA use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation.\n\nWhen fw_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.\n\nWe recommend upgrading past commit 76e42ae831991c828cffa8c37736ebfb831ad5ec.\n\n(CVE-2023-4207)\n\nA use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation.\n\nWhen u32_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.\n\nWe recommend upgrading past commit 3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81.\n\n(CVE-2023-4208)\n\nA use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation.\n\nThe unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free.\n\nWe recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.\n\n(CVE-2023-4622)", "category":"general", "title":"Description" }, { "text":"An update for kernel is now available for openEuler-20.03-LTS-SP1.\n\nopenEuler Security has rated this update as having a security impact of high. 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":"High", "category":"general", "title":"Severity" }, { "text":"kernel", "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-2023-1637", "category":"self", "url":"https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1637" }, { "summary":"CVE-2023-4206", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail?cveId=CVE-2023-4206&packageName=kernel" }, { "summary":"CVE-2023-4207", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail?cveId=CVE-2023-4207&packageName=kernel" }, { "summary":"CVE-2023-4208", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail?cveId=CVE-2023-4208&packageName=kernel" }, { "summary":"CVE-2023-4622", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail?cveId=CVE-2023-4622&packageName=kernel" }, { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4206" }, { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4207" }, { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4208" }, { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4622" }, { "summary":"openEuler-SA-2023-1637 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/advisories/2023/csaf-openeuler-sa-2023-1637.json" } ], "title":"An update for kernel is now available for openEuler-20.03-LTS-SP1", "tracking":{ "initial_release_date":"2023-09-15T14:23:38+08:00", "revision_history":[ { "date":"2023-09-15T14:23:38+08:00", "summary":"Initial", "number":"1.0.0" }, { "date":"2024-10-31T14:23:38+08:00", "summary":"final", "number":"2.0.0" } ], "generator":{ "date":"2024-10-31T14:23:38+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2024-10-31T14:23:38+08:00", "id":"openEuler-SA-2023-1637", "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":{ 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This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.We recommend upgrading past commit 76e42ae831991c828cffa8c37736ebfb831ad5ec.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-20.03-LTS-SP1:kernel-debugsource-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:bpftool-debuginfo-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:kernel-tools-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:kernel-debuginfo-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:python3-perf-debuginfo-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:kernel-tools-devel-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:kernel-source-4.19.90-2309.3.0.0218.oe1.aarch64", 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This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free.We recommend upgrading past commit 3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-20.03-LTS-SP1:kernel-debugsource-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:bpftool-debuginfo-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:kernel-tools-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:kernel-debuginfo-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:python3-perf-debuginfo-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:kernel-tools-devel-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:kernel-source-4.19.90-2309.3.0.0218.oe1.aarch64", 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Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free.We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-20.03-LTS-SP1:kernel-debugsource-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:bpftool-debuginfo-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:kernel-tools-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:kernel-debuginfo-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:python3-perf-debuginfo-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:kernel-tools-devel-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:kernel-source-4.19.90-2309.3.0.0218.oe1.aarch64", "openEuler-20.03-LTS-SP1:perf-debuginfo-4.19.90-2309.3.0.0218.oe1.aarch64", 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