{"id":"CVE-2022-36123","title":"The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss)","summary":"The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges.","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 5.18.13","h300s_firmware","h500s_firmware","h700s_firmware","h410s_firmware","h410c_firmware"],"patched":["linux_kernel 5.18.13"],"published":"2022-07-29","updated":"2026-10-14","sourceUpdated":"2026-10-14T18:17:01.387","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-36123","references":[{"url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13","label":"cve@mitre.org"},{"url":"https://github.com/sickcodes/security/blob/master/advisories/SICK-2022-128.md","label":"cve@mitre.org"},{"url":"https://github.com/torvalds/linux/commit/74a0032b8524ee2bd4443128c0bf9775928680b0","label":"cve@mitre.org"},{"url":"https://github.com/torvalds/linux/commit/96e8fc5818686d4a1591bb6907e7fdb64ef29884","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20220901-0003/","label":"cve@mitre.org"},{"url":"https://sick.codes/sick-2022-128","label":"cve@mitre.org"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/sickcodes/security/blob/master/advisories/SICK-2022-128.md","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/74a0032b8524ee2bd4443128c0bf9775928680b0","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/96e8fc5818686d4a1591bb6907e7fdb64ef29884","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20220901-0003/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sick.codes/sick-2022-128","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-202008.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-794697.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.009,"epssPercentile":0.59253,"ingestedAt":"2026-10-14T18:47:39.268Z","slug":"CVE-2022-36123","body":"## Overview\n\nThe Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges.\n\n## Affected\n\n- `linux_kernel < 5.18.13`\n- `h300s_firmware`\n- `h500s_firmware`\n- `h700s_firmware`\n- `h410s_firmware`\n- `h410c_firmware`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 5.18.13`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}