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{"affected_release": [{"advisory": "RHSA-2021:2735", "cpe": "cpe:/o:redhat:rhel_els:6", "package": "kernel-0:2.6.32-754.41.2.el6", "product_name": "Red Hat Enterprise Linux 6 Extended Lifecycle Support", "release_date": "2021-07-20T00:00:00Z"}, {"advisory": "RHSA-2021:2316", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-1160.31.1.rt56.1169.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-06-08T00:00:00Z"}, {"advisory": "RHSA-2021:1379", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-alt-0:4.14.0-115.36.1.el7a", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-04-27T00:00:00Z"}, {"advisory": "RHSA-2021:2285", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-06-08T00:00:00Z"}, {"advisory": "RHSA-2021:2314", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-1160.31.1.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-06-08T00:00:00Z"}, {"advisory": "RHSA-2021:3399", "cpe": "cpe:/o:redhat:rhel_aus:7.2", "package": "kernel-0:3.10.0-327.100.1.el7", "product_name": "Red Hat Enterprise Linux 7.2 Advanced Update Support", "release_date": "2021-08-31T00:00:00Z"}, {"advisory": "RHSA-2021:2733", "cpe": "cpe:/o:redhat:rhel_aus:7.3", "package": "kernel-0:3.10.0-514.90.2.el7", "product_name": "Red Hat Enterprise Linux 7.3 Advanced Update Support", "release_date": "2021-07-20T00:00:00Z"}, {"advisory": "RHSA-2021:2732", "cpe": "cpe:/o:redhat:rhel_aus:7.4", "package": "kernel-0:3.10.0-693.90.2.el7", "product_name": "Red Hat Enterprise Linux 7.4 Advanced Update Support", "release_date": "2021-07-20T00:00:00Z"}, {"advisory": "RHSA-2021:2732", "cpe": "cpe:/o:redhat:rhel_tus:7.4", "package": "kernel-0:3.10.0-693.90.2.el7", "product_name": "Red Hat Enterprise Linux 7.4 Telco Extended Update Support", "release_date": "2021-07-20T00:00:00Z"}, {"advisory": "RHSA-2021:2732", "cpe": "cpe:/o:redhat:rhel_e4s:7.4", "package": "kernel-0:3.10.0-693.90.2.el7", "product_name": "Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions", "release_date": "2021-07-20T00:00:00Z"}, {"advisory": "RHSA-2021:2730", "cpe": "cpe:/o:redhat:rhel_aus:7.6", "package": "kernel-0:3.10.0-957.78.2.el7", "product_name": "Red Hat Enterprise Linux 7.6 Advanced Update Support(Disable again in 2026 - SPRHEL-7118)", "release_date": "2021-07-20T00:00:00Z"}, {"advisory": "RHSA-2021:2730", "cpe": "cpe:/o:redhat:rhel_tus:7.6", "package": "kernel-0:3.10.0-957.78.2.el7", "product_name": "Red Hat Enterprise Linux 7.6 Telco Extended Update Support", "release_date": "2021-07-20T00:00:00Z"}, {"advisory": "RHSA-2021:2730", "cpe": "cpe:/o:redhat:rhel_e4s:7.6", "package": "kernel-0:3.10.0-957.78.2.el7", "product_name": "Red Hat Enterprise Linux 7.6 Update Services for SAP Solutions", "release_date": "2021-07-20T00:00:00Z"}, {"advisory": "RHSA-2021:2731", "cpe": "cpe:/o:redhat:rhel_e4s:7.6", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 7.6 Update Services for SAP Solutions", "release_date": "2021-07-21T00:00:00Z"}, {"advisory": "RHSA-2021:3522", "cpe": "cpe:/o:redhat:rhel_aus:7.7", "package": "kernel-0:3.10.0-1062.56.1.el7", "product_name": "Red Hat Enterprise Linux 7.7 Advanced Update Support", "release_date": "2021-09-14T00:00:00Z"}, {"advisory": "RHSA-2021:3522", "cpe": "cpe:/o:redhat:rhel_tus:7.7", "package": "kernel-0:3.10.0-1062.56.1.el7", "product_name": "Red Hat Enterprise Linux 7.7 Telco Extended Update Support", "release_date": "2021-09-14T00:00:00Z"}, {"advisory": "RHSA-2021:3522", "cpe": "cpe:/o:redhat:rhel_e4s:7.7", "package": "kernel-0:3.10.0-1062.56.1.el7", "product_name": "Red Hat Enterprise Linux 7.7 Update Services for SAP Solutions", "release_date": "2021-09-14T00:00:00Z"}, {"advisory": "RHSA-2021:3523", "cpe": "cpe:/o:redhat:rhel_e4s:7.7", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 7.7 Update Services for SAP Solutions", "release_date": "2021-09-14T00:00:00Z"}, {"advisory": "RHSA-2021:1081", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-240.22.1.rt7.77.el8_3", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-04-06T00:00:00Z"}, {"advisory": "RHSA-2021:1093", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-240.22.1.el8_3", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-04-06T00:00:00Z"}, {"advisory": "RHSA-2021:2099", "cpe": "cpe:/o:redhat:rhel_eus:8.1", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-05-25T00:00:00Z"}, {"advisory": "RHSA-2021:2106", "cpe": "cpe:/o:redhat:rhel_eus:8.1", "package": "kernel-0:4.18.0-147.48.1.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-05-25T00:00:00Z"}, {"advisory": "RHSA-2021:1279", "cpe": "cpe:/a:redhat:rhel_eus:8.2::nfv", "package": "kernel-rt-0:4.18.0-193.51.1.rt13.101.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-04-20T00:00:00Z"}, {"advisory": "RHSA-2021:1272", "cpe": "cpe:/o:redhat:rhel_eus:8.2", "package": "kernel-0:4.18.0-193.51.1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-04-20T00:00:00Z"}, {"advisory": "RHSA-2021:1295", "cpe": "cpe:/o:redhat:rhel_eus:8.2", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-04-20T00:00:00Z"}], "bugzilla": {"description": "kernel: Use after free via PI futex state", "id": "1922249", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1922249"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free during fault handling, allowing local users to execute code in the kernel, aka CID-34b1a1ce1458.", "A flaw was found in the Linux kernel. A use-after-free memory flaw in the Fast Userspace Mutexes functionality allowing a local user to crash the system or escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."], "name": "CVE-2021-3347", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2021-01-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-3347\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-3347"], "threat_severity": "Important"}