{"api_version":"1","generated_at":"2026-07-24T00:33:44+00:00","cve":"CVE-2026-23269","urls":{"html":"https://cve.report/CVE-2026-23269","api":"https://cve.report/api/cve/CVE-2026-23269.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23269","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23269"},"summary":{"title":"apparmor: validate DFA start states are in bounds in unpack_pdb","description":"In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: validate DFA start states are in bounds in unpack_pdb\n\nStart states are read from untrusted data and used as indexes into the\nDFA state tables. 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18:23:49"},"problem_types":["CWE-125"],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.1","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.1","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","data":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/5487871b2b56c19d26936ed6fdc62652b30941df","name":"https://git.kernel.org/stable/c/5487871b2b56c19d26936ed6fdc62652b30941df","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f43eea8ae0102ea198da211ef7f5ce83725ecf19","name":"https://git.kernel.org/stable/c/f43eea8ae0102ea198da211ef7f5ce83725ecf19","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/07cf6320f40ea2ccfad63728cff34ecb309d03da","name":"https://git.kernel.org/stable/c/07cf6320f40ea2ccfad63728cff34ecb309d03da","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.qualys.com/2026/03/10/crack-armor.txt","name":"https://www.qualys.com/2026/03/10/crack-armor.txt","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Third 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The aa_dfa_next() function call in unpack_pdb() will\naccess dfa->tables[YYTD_ID_BASE][start], and if the start state exceeds\nthe number of states in the DFA, this results in an out-of-bound read.\n\n==================================================================\n BUG: KASAN: slab-out-of-bounds in aa_dfa_next+0x2a1/0x360\n Read of size 4 at addr ffff88811956fb90 by task su/1097\n ...\n\nReject policies with out-of-bounds start states during unpacking\nto prevent the issue.","Type":"Description","Title":"apparmor: validate DFA start states are in bounds in unpack_pdb"}]}}}