[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-USN-4910-1":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T08:53:30.047Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":34,"duplicates":35,"related":36,"reserved_at":9,"published_at":42,"modified_at":43,"state":9,"summary":44,"references_raw":46,"kevs":74,"epss":9,"epss_history":75,"metrics":76,"affected":77},"USN-4910-1","linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oracle, linux-raspi vulnerabilities\n\nRyota Shiga discovered that the sockopt BPF hooks in the Linux kernel could\nallow a user space program to probe for valid kernel addresses. A local\nattacker could use this to ease exploitation of another kernel\nvulnerability. (CVE-2021-20239)\n\nIt was discovered that the BPF verifier in the Linux kernel did not\nproperly handle signed add32 and sub integer overflows. A local attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2021-20268)\n\nIt was discovered that the priority inheritance futex implementation in the\nLinux kernel contained a race condition, leading to a use-after-free\nvulnerability. A local attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2021-3347)\n\nIt was discovered that the network block device (nbd) driver in the Linux\nkernel contained a use-after-free vulnerability during device setup. A\nlocal attacker with access to the nbd device could use this to cause a\ndenial of service (system crash) or possibly execute arbitrary code.\n(CVE-2021-3348)\n\n吴异 discovered that the NFS implementation in the Linux kernel did not\nproperly prevent access outside of an NFS export that is a subdirectory of\na file system. An attacker could possibly use this to bypass NFS access\nrestrictions. (CVE-2021-3178)\n",null,[],[],[],[14,16,18,20,22,24,26,28,30,32],{"_key":15},"CVE-2021-20239",{"_key":17},"CVE-2021-20268",{"_key":19},"CVE-2021-3178",{"_key":21},"CVE-2021-3347",{"_key":23},"CVE-2021-3348",{"_key":25},"UBUNTU-CVE-2021-20239",{"_key":27},"UBUNTU-CVE-2021-20268",{"_key":29},"UBUNTU-CVE-2021-3178",{"_key":31},"UBUNTU-CVE-2021-3347",{"_key":33},"UBUNTU-CVE-2021-3348",[],[],[37,38,39,40,41],{"_key":25},{"_key":27},{"_key":29},{"_key":31},{"_key":33},"2021-04-13T20:41:12Z","2026-06-03T14:04:06.818737413Z",{"cisa_kev":45,"cisa_ransomware":45,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[47,53,58,62,66,70],{"url":48,"sources":49,"tags":51},"https://ubuntu.com/security/notices/USN-4910-1",[50],"osv_ubuntu",[52],"Advisory",{"url":54,"sources":55,"tags":56},"https://ubuntu.com/security/CVE-2021-3178",[50],[57],"REPORT",{"url":59,"sources":60,"tags":61},"https://ubuntu.com/security/CVE-2021-3347",[50],[57],{"url":63,"sources":64,"tags":65},"https://ubuntu.com/security/CVE-2021-3348",[50],[57],{"url":67,"sources":68,"tags":69},"https://ubuntu.com/security/CVE-2021-20239",[50],[57],{"url":71,"sources":72,"tags":73},"https://ubuntu.com/security/CVE-2021-20268",[50],[57],[],[],[],[78],{"ecosystem":79,"name":80,"vendor":81,"product":80,"cpe_part":9,"purl_type":82,"purl_namespace":81,"purl_name":80,"source":9,"versions":83},"Ubuntu","linux-hwe-5.8","ubuntu","deb",[84],{"version":85,"is_range":86,"range_type":87,"version_start":9,"version_start_type":9,"version_end":88,"version_end_type":89,"fixed_in":9},"lt5_8_0_49_55~20_04_1",true,"ecosystem","5.8.0-49.55~20.04.1","excluding"]