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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:5.4.0:*:*:*:*:*:*:*", "matchCriteriaId": "19F0AF6E-E2DF-4D4C-840E-7B66D0A2B2A3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.4.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "13BDAE24-5AE5-4E68-A325-18C8383BBDFD", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.4.0:rc2:*:*:*:*:*:*", "matchCriteriaId": "CF8CE461-5227-46BC-B913-3BF09141554E", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer)."}, {"lang": "es", "value": "En el kernel de Linux versi\u00f3n 5.4.0-rc2, se presenta un uso de la memoria previamente liberada en la funci\u00f3n __blk_add_trace en el archivo kernel/trace/blktrace.c (que se usa para completar una estructura blk_io_trace y colocarla en un per-cpu sub-buffer)."}], "id": "CVE-2019-19768", "lastModified": "2024-11-21T04:35:20.740", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-12-12T20:15:17.663", "references": [{"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.kernel.org/show_bug.cgi?id=205711"}, {"source": "cve@mitre.org", "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html"}, {"source": "cve@mitre.org", "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html"}, {"source": "cve@mitre.org", "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html"}, {"source": "cve@mitre.org", "url": "https://security.netapp.com/advisory/ntap-20200103-0001/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4342-1/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4344-1/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4345-1/"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4346-1/"}, {"source": "cve@mitre.org", "url": "https://www.debian.org/security/2020/dsa-4698"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.kernel.org/show_bug.cgi?id=205711"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20200103-0001/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/4342-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/4344-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/4345-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/4346-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.debian.org/security/2020/dsa-4698"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2020:2085", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-1127.8.2.rt56.1103.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-05-12T00:00:00Z"}, {"advisory": "RHSA-2020:2082", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-1127.8.2.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-05-12T00:00:00Z"}, {"advisory": "RHSA-2020:2104", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-alt-0:4.14.0-115.21.2.el7a", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-05-12T00:00:00Z"}, {"advisory": "RHSA-2020:2285", "cpe": "cpe:/o:redhat:rhel_aus:7.2", "package": "kernel-0:3.10.0-327.88.1.el7", "product_name": "Red Hat Enterprise Linux 7.2 Advanced Update Support", "release_date": "2020-05-26T00:00:00Z"}, {"advisory": "RHSA-2020:2277", "cpe": "cpe:/o:redhat:rhel_aus:7.3", "package": "kernel-0:3.10.0-514.76.1.el7", "product_name": "Red Hat Enterprise Linux 7.3 Advanced Update Support", "release_date": "2020-05-26T00:00:00Z"}, {"advisory": "RHSA-2020:2277", "cpe": "cpe:/o:redhat:rhel_tus:7.3", "package": "kernel-0:3.10.0-514.76.1.el7", "product_name": "Red Hat Enterprise Linux 7.3 Telco Extended Update Support", "release_date": "2020-05-26T00:00:00Z"}, {"advisory": "RHSA-2020:2277", "cpe": "cpe:/o:redhat:rhel_e4s:7.3", "package": "kernel-0:3.10.0-514.76.1.el7", "product_name": "Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions", "release_date": "2020-05-26T00:00:00Z"}, {"advisory": "RHSA-2020:2214", "cpe": "cpe:/o:redhat:rhel_aus:7.4", "package": "kernel-0:3.10.0-693.67.1.el7", "product_name": "Red Hat Enterprise Linux 7.4 Advanced Update Support", "release_date": "2020-05-19T00:00:00Z"}, {"advisory": "RHSA-2020:2214", "cpe": "cpe:/o:redhat:rhel_tus:7.4", "package": "kernel-0:3.10.0-693.67.1.el7", "product_name": "Red Hat Enterprise Linux 7.4 Telco Extended Update Support", "release_date": "2020-05-19T00:00:00Z"}, {"advisory": "RHSA-2020:2214", "cpe": "cpe:/o:redhat:rhel_e4s:7.4", "package": "kernel-0:3.10.0-693.67.1.el7", "product_name": "Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions", "release_date": "2020-05-19T00:00:00Z"}, {"advisory": "RHSA-2020:2289", "cpe": "cpe:/o:redhat:rhel_eus:7.6", "package": "kernel-0:3.10.0-957.54.1.el7", "product_name": "Red Hat Enterprise Linux 7.6 Extended Update Support", "release_date": "2020-05-26T00:00:00Z"}, {"advisory": "RHSA-2020:2291", "cpe": "cpe:/o:redhat:rhel_eus:7.6", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 7.6 Extended Update Support", "release_date": "2020-05-26T00:00:00Z"}, {"advisory": "RHSA-2020:2519", "cpe": "cpe:/o:redhat:rhel_eus:7.7", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 7.7 Extended Update Support", "release_date": "2020-06-12T00:00:00Z"}, {"advisory": "RHSA-2020:2522", "cpe": "cpe:/o:redhat:rhel_eus:7.7", "package": "kernel-0:3.10.0-1062.26.1.el7", "product_name": "Red Hat Enterprise Linux 7.7 Extended Update Support", "release_date": "2020-06-11T00:00:00Z"}, {"advisory": "RHSA-2020:1567", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-193.rt13.51.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-04-28T00:00:00Z"}, {"advisory": "RHSA-2020:1769", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-193.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-04-28T00:00:00Z"}, {"advisory": "RHSA-2020:1966", "cpe": "cpe:/o:redhat:rhel_e4s:8.0", "package": "kernel-0:4.18.0-80.18.1.el8_0", "product_name": "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions", "release_date": "2020-04-29T00:00:00Z"}, {"advisory": "RHSA-2020:2199", "cpe": "cpe:/o:redhat:rhel_eus:8.1", "package": "kernel-0:4.18.0-147.13.2.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2020-05-19T00:00:00Z"}, {"advisory": "RHSA-2020:2203", "cpe": "cpe:/o:redhat:rhel_eus:8.1", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2020-05-20T00:00:00Z"}, {"advisory": "RHSA-2020:2242", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-1:3.10.0-693.67.1.rt56.665.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2020-05-20T00:00:00Z"}, {"advisory": "RHSA-2020:2289", "cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor", "package": "kernel-0:3.10.0-957.54.1.el7", "product_name": "Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUS", "release_date": "2020-05-26T00:00:00Z"}], "bugzilla": {"description": "kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c", "id": "1786164", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1786164"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).", "A use-after-free vulnerability was found in the Linux kernel\u2019s implementation of blktrace in the __blk_add_trace function. A local attacker with permissions to run block trace instructions against a device can create a situation where the core block_trace object is used after it is freed. The attacker can pre-groom memory to race this use-after-free to create a condition where the memory is corrupted and cause privilege escalation.\nThe ability to create this condition requires elevated privileges, and it has been decided that this change in Red Hat Enterprise Linux 5 and 6 would risk introducing possible regressions and will not be backported."], "name": "CVE-2019-19768", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2019-11-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-19768\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-19768"], "threat_severity": "Important"}

{}