CVE-2023-52983

{"id": "CVE-2023-52983", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2025-03-27T17:15:45.557", "references": [{"url": "https://git.kernel.org/stable/c/511c922c5bf6c8a166bea826e702336bc2424140", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7f77f3dab5066a7c9da73d72d1eee895ff84a8d5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b600de2d7d3a16f9007fad1bdae82a3951a26af2", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cb1876fc33af26d00efdd473311f1b664c77c44e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock, bfq: fix uaf for bfqq in bic_set_bfqq()\n\nAfter commit 64dc8c732f5c (\"block, bfq: fix possible uaf for 'bfqq->bic'\"),\nbic->bfqq will be accessed in bic_set_bfqq(), however, in some context\nbic->bfqq will be freed, and bic_set_bfqq() is called with the freed\nbic->bfqq.\n\nFix the problem by always freeing bfqq after bic_set_bfqq()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: block, bfq: correcci\u00f3n de uaf para bfqq en bic_set_bfqq(). Despu\u00e9s del commit 64dc8c732f5c (\"block, bfq: correcci\u00f3n de posible uaf para 'bfqq->bic'\"), se acceder\u00e1 a bic->bfqq en bic_set_bfqq(). Sin embargo, en algunos contextos, se liberar\u00e1 bic->bfqq y se llamar\u00e1 a bic_set_bfqq() con el bic->bfqq liberado. Para solucionar el problema, libere siempre bfqq despu\u00e9s de bic_set_bfqq()."}], "lastModified": "2025-04-01T15:39:39.127", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "21081389-6ED8-4898-80ED-81EF6A2B1FEC", "versionEndExcluding": "5.15.93", "versionStartIncluding": "5.15.86"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6AACE63B-510D-430C-ACD9-34922D790040", "versionEndExcluding": "6.1.11", "versionStartIncluding": "6.1.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0.16:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0F12ACFA-7194-43FD-B79A-93AEA2668E6F"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}