[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-UBUNTU-CVE-2020-9391":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T02:53:27.892Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":50,"epss":9,"epss_history":51,"metrics":52,"affected":59},"UBUNTU-CVE-2020-9391","An issue was discovered in the Linux kernel 5.4 and 5.5 through 5.5.6 on the AArch64 architecture. It ignores the top byte in the address passed to the brk system call, potentially moving the memory break downwards when the application expects it to move upwards, aka CID-dcde237319e6. This has been observed to cause heap corruption with the GNU C Library malloc implementation.",null,[],[],[],[14],{"_key":15},"CVE-2020-9391",[],[],[],"2020-02-25T18:15:00Z","2025-10-24T04:48:21Z",{"cisa_kev":22,"cisa_ransomware":22,"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,[24,30,34,38,42,46],{"url":25,"sources":26,"tags":28},"https://ubuntu.com/security/CVE-2020-9391",[27],"osv_ubuntu",[29],"REPORT",{"url":31,"sources":32,"tags":33},"https://git.kernel.org/linus/dcde237319e626d1ec3c9d8b7613032f0fd4663a",[27],[29],{"url":35,"sources":36,"tags":37},"http://www.openwall.com/lists/oss-security/2020/02/25/6",[27],[29],{"url":39,"sources":40,"tags":41},"https://bugzilla.redhat.com/show_bug.cgi?id=1797052",[27],[29],{"url":43,"sources":44,"tags":45},"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dcde237319e626d1ec3c9d8b7613032f0fd4663a",[27],[29],{"url":47,"sources":48,"tags":49},"https://www.cve.org/CVERecord?id=CVE-2020-9391",[27],[29],[],[],[53],{"source":27,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":54,"cvss_v4_0":9},{"baseScore":55,"baseSeverity":9,"vectorString":56,"impactScore":57,"exploitabilityScore":58},5.5,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",6,4.6,[60,70,74,79],{"ecosystem":61,"name":62,"vendor":63,"product":62,"cpe_part":9,"purl_type":64,"purl_namespace":63,"purl_name":62,"source":9,"versions":65},"Ubuntu","linux-azure-edge","ubuntu","deb",[66],{"version":67,"is_range":68,"range_type":69,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"all",true,"ecosystem",{"ecosystem":61,"name":71,"vendor":63,"product":71,"cpe_part":9,"purl_type":64,"purl_namespace":63,"purl_name":71,"source":9,"versions":72},"linux-gcp-edge",[73],{"version":67,"is_range":68,"range_type":69,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"ecosystem":61,"name":75,"vendor":63,"product":75,"cpe_part":9,"purl_type":64,"purl_namespace":63,"purl_name":75,"source":9,"versions":76},"linux-hwe-edge",[77,78],{"version":67,"is_range":68,"range_type":69,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":67,"is_range":68,"range_type":69,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"ecosystem":61,"name":80,"vendor":63,"product":80,"cpe_part":9,"purl_type":64,"purl_namespace":63,"purl_name":80,"source":9,"versions":81},"linux-raspi2",[82],{"version":67,"is_range":68,"range_type":69,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9}]