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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DD9A39A6-6336-4B60-807F-3538AD8D4498", "versionEndExcluding": "5.19", "versionStartIncluding": "5.11", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A buffer overflow vulnerability was found in the Linux kernel Intel\u2019s iSMT SMBus host controller driver in the way it handled the I2C_SMBUS_BLOCK_PROC_CALL case (via the ioctl I2C_SMBUS) with malicious input data. This flaw could allow a local user to crash the system."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad de desbordamiento de b\u00fafer en el controlador de host iSMT SMBus del kernel de Linux en la forma en que manejaba el caso I2C_SMBUS_BLOCK_PROC_CALL (por el ioctl I2C_SMBUS) con datos de entrada maliciosos. Este fallo podr\u00eda permitir a un usuario local bloquear el sistema"}], "id": "CVE-2022-3077", "lastModified": "2025-06-27T17:40:17.870", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-09-09T15:15:14.950", "references": [{"source": "secalert@redhat.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/690b2549b19563ec5ad53e5c82f6a944d910086e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/690b2549b19563ec5ad53e5c82f6a944d910086e"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-120"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2023:0334", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-162.12.1.el9_1", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-01-23T00:00:00Z"}, {"advisory": "RHSA-2023:0300", "cpe": "cpe:/a:redhat:enterprise_linux:9::nfv", "package": "kernel-rt-0:5.14.0-162.12.1.rt21.175.el9_1", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-01-23T00:00:00Z"}, {"advisory": "RHSA-2023:0334", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-162.12.1.el9_1", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-01-23T00:00:00Z"}], "bugzilla": {"description": "kernel: i2c: unbounded length leads to buffer overflow in ismt_access()", "id": "2123309", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2123309"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-120", "details": ["A buffer overflow vulnerability was found in the Linux kernel Intel\u2019s iSMT SMBus host controller driver in the way it handled the I2C_SMBUS_BLOCK_PROC_CALL case (via the ioctl I2C_SMBUS) with malicious input data. This flaw could allow a local user to crash the system.", "A buffer overflow vulnerability was found in the Linux kernel Intel\u2019s iSMT SMBus host controller driver in the way it handled the I2C_SMBUS_BLOCK_PROC_CALL case (via the ioctl I2C_SMBUS) with malicious input data. In particular, the userspace controllable \"data->block[0]\" variable was not capped to a number between 0-255 and then used as the size of a memcpy, thus possibly writing beyond the end of dma_buffer. This flaw could allow a privileged local user to crash the system."], "mitigation": {"lang": "en:us", "value": "This flaw can be mitigated by preventing the i2c-ismt module from being loaded. Please see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from being loaded automatically."}, "name": "CVE-2022-3077", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2022-06-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-3077\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-3077"], "statement": "Red Hat Enterprise Linux 6, 7 and 8 are not affected by this issue as they did not include support for I2C_SMBUS_BLOCK_PROC_CALL (upstream commit 5e9a97b).", "threat_severity": "Moderate"}