CVE-2025-71306

{"id": "CVE-2025-71306", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "95b3cdafd7cb74414070893445a9b731793f7b55", "lessThan": "0f39d936a34933ebfbdc13a04f0aba814d3b9709", "versionType": "git"}, {"status": "affected", "version": "95b3cdafd7cb74414070893445a9b731793f7b55", "lessThan": "ab3d16da982a4ebb715d487dbf9dd66e3990d935", "versionType": "git"}, {"status": "affected", "version": "95b3cdafd7cb74414070893445a9b731793f7b55", "lessThan": "377cae9851e8559e9d8b82a78c1ac0abeb18839c", "versionType": "git"}], "programFiles": ["security/integrity/ima/ima.h", "security/integrity/ima/ima_appraise.c", "security/integrity/ima/ima_main.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.14"}, {"status": "unaffected", "version": "0", "lessThan": "6.14", "versionType": "semver"}, {"status": "unaffected", "version": "6.18.58", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.4", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["security/integrity/ima/ima.h", "security/integrity/ima/ima_appraise.c", "security/integrity/ima/ima_main.c"], "defaultStatus": "affected"}]}], "published": "2026-05-27T14:16:43.167", "references": [{"url": "https://git.kernel.org/stable/c/0f39d936a34933ebfbdc13a04f0aba814d3b9709", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/377cae9851e8559e9d8b82a78c1ac0abeb18839c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ab3d16da982a4ebb715d487dbf9dd66e3990d935", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nima: Fix stack-out-of-bounds in is_bprm_creds_for_exec()\n\nKASAN reported a stack-out-of-bounds access in ima_appraise_measurement\nfrom is_bprm_creds_for_exec:\n\nBUG: KASAN: stack-out-of-bounds in ima_appraise_measurement+0x12dc/0x16a0\n Read of size 1 at addr ffffc9000160f940 by task sudo/550\nThe buggy address belongs to stack of task sudo/550\nand is located at offset 24 in frame:\n ima_appraise_measurement+0x0/0x16a0\nThis frame has 2 objects:\n [48, 56) 'file'\n [80, 148) 'hash'\n\nThis is caused by using container_of on the *file pointer. This offset\ncalculation is what triggers the stack-out-of-bounds error.\n\nIn order to fix this, pass in a bprm_is_check boolean which can be set\ndepending on how process_measurement is called. If the caller has a\nlinux_binprm pointer and the function is BPRM_CHECK we can determine\nis_check and set it then. Otherwise set it to false."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nima: Correcci\u00f3n de acceso fuera de l\u00edmites de la pila en is_bprm_creds_for_exec()\n\nKASAN inform\u00f3 un acceso fuera de l\u00edmites de la pila en ima_appraise_measurement desde is_bprm_creds_for_exec:\n\nERROR: KASAN: acceso fuera de l\u00edmites de la pila en ima_appraise_measurement+0x12dc/0x16a0\n Lectura de tama\u00f1o 1 en la direcci\u00f3n ffffc9000160f940 por la tarea sudo/550\nLa direcci\u00f3n defectuosa pertenece a la pila de la tarea sudo/550\ny est\u00e1 ubicada en el desplazamiento 24 en el marco:\n ima_appraise_measurement+0x0/0x16a0\nEste marco tiene 2 objetos:\n [48, 56) 'file'\n [80, 148) 'hash'\n\nEsto es causado por usar container_of en el puntero file. Este c\u00e1lculo de desplazamiento es lo que desencadena el error de acceso fuera de l\u00edmites de la pila.\n\nPara solucionar esto, pasar un booleano bprm_is_check que puede ser establecido dependiendo de c\u00f3mo se llama a process_measurement. Si el llamador tiene un puntero linux_binprm y la funci\u00f3n es BPRM_CHECK, podemos determinar is_check y establecerlo entonces. De lo contrario, establecerlo en falso."}], "lastModified": "2026-10-21T13:18:26.440", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "31092616-0795-4C71-9777-22D46B94263F", "versionEndExcluding": "6.19.4", "versionStartIncluding": "6.14"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}