CVE-2020-11947

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:qemu:qemu:4.1.0:-:*:*:*:*:*:*", "matchCriteriaId": "06935E88-1EDF-41DD-8631-66C4C973219D", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "iscsi_aio_ioctl_cb in block/iscsi.c in QEMU 4.1.0 has a heap-based buffer over-read that may disclose unrelated information from process memory to an attacker."}, {"lang": "es", "value": "La funci\u00f3n iscsi_aio_ioctl_cb en el archivo block/iscsi.c en QEMU 4.1.0, presenta una lectura excesiva del b\u00fafer en la regi\u00f3n heap de la memoria que puede revelar informaci\u00f3n no relacionada de la memoria del proceso a un atacante."}], "id": "CVE-2020-11947", "lastModified": "2026-06-17T02:51:06.780", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.8, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-12-31T01:15:12.473", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/01/13/4"}, {"source": "cve@mitre.org", "url": "https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ff0507c239a246fd7215b31c5658fc6a3ee1e4c5"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210212-0001/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/01/13/4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ff0507c239a246fd7215b31c5658fc6a3ee1e4c5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210212-0001/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2021:0648", "cpe": "cpe:/a:redhat:advanced_virtualization:8.2::el8", "package": "virt:8.2-8020120210203174743.863bb0db", "product_name": "Advanced Virtualization for RHEL 8.2.1", "release_date": "2021-02-23T00:00:00Z"}, {"advisory": "RHSA-2021:0648", "cpe": "cpe:/a:redhat:advanced_virtualization:8.2::el8", "package": "virt-devel:8.2-8020120210203174743.863bb0db", "product_name": "Advanced Virtualization for RHEL 8.2.1", "release_date": "2021-02-23T00:00:00Z"}, {"advisory": "RHSA-2021:1762", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "virt-devel:rhel-8040020210317013608.9f9e2e7e", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}, {"advisory": "RHSA-2021:1762", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "virt:rhel-8040020210317013608.9f9e2e7e", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}], "bugzilla": {"description": "QEMU: heap buffer overflow in iscsi_aio_ioctl_cb() in block/iscsi.c may lead to information disclosure", "id": "1912765", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1912765"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N", "status": "verified"}, "cwe": "CWE-131->CWE-122", "details": ["iscsi_aio_ioctl_cb in block/iscsi.c in QEMU 4.1.0 has a heap-based buffer over-read that may disclose unrelated information from process memory to an attacker.", "A heap buffer overflow flaw was found in the iSCSI support of QEMU. This flaw could lead to an out-of-bounds read access and possible information disclosure from the QEMU process memory to a malicious guest. The highest threat from this vulnerability is to data confidentiality."], "name": "CVE-2020-11947", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "kvm", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "qemu-kvm-ma", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Affected", "package_name": "virt:8.2/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Not affected", "package_name": "virt:8.3/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openstack:10", "fix_state": "Out of support scope", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat OpenStack Platform 10 (Newton)"}, {"cpe": "cpe:/a:redhat:openstack:13", "fix_state": "Out of support scope", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat OpenStack Platform 13 (Queens)"}], "public_date": "2020-04-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-11947\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-11947\nhttps://www.openwall.com/lists/oss-security/2021/01/13/4"], "statement": "This flaw has been rated as having a security impact of Low, and is not currently planned to be addressed in future updates of Red Hat Enterprise Linux 7. Red Hat Enterprise Linux 7 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.", "threat_severity": "Low"}

{}