CVE-2019-8956

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["x_refsource_MISC"], "url": "https://secuniaresearch.flexerasoftware.com/secunia_research/2019-5/"}, {"tags": ["x_refsource_MISC"], "url": "https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=ba59fb0273076637f0add4311faa990a5eec27c0"}, {"name": "USN-3930-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/3930-1/"}, {"name": "USN-3930-2", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/3930-2/"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://support.f5.com/csp/article/K12671141"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "PSIRT-CNA@flexerasoftware.com", "ID": "CVE-2019-8956", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Linux Kernel", "version": {"version_data": [{"version_value": "4.20.x prior to 4.20.8"}, {"version_value": "4.19.x prior to 4.19.21"}]}}]}, "vendor_name": "UNKNOWN"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the \"sctp_sendmsg()\" function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Privilege escalation"}]}]}, "references": {"reference_data": [{"name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21", "refsource": "MISC", "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21"}, {"name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8", "refsource": "MISC", "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8"}, {"name": "https://secuniaresearch.flexerasoftware.com/secunia_research/2019-5/", "refsource": "MISC", "url": "https://secuniaresearch.flexerasoftware.com/secunia_research/2019-5/"}, {"name": 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"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://secuniaresearch.flexerasoftware.com/secunia_research/2019-5/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=ba59fb0273076637f0add4311faa990a5eec27c0"}, {"name": "USN-3930-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "https://usn.ubuntu.com/3930-1/"}, {"name": "USN-3930-2", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "https://usn.ubuntu.com/3930-2/"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://support.f5.com/csp/article/K12671141"}]}]}, "cveMetadata": {"assignerOrgId": "44d08088-2bea-4760-83a6-1e9be26b15ab", "assignerShortName": "flexera", "cveId": "CVE-2019-8956", "datePublished": "2019-04-01T18:39:32.000Z", "dateReserved": "2019-02-20T00:00:00.000Z", "dateUpdated": "2024-08-04T21:31:37.498Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Linux Kernel", "vendor": "UNKNOWN", "versions": [{"status": "affected", "version": "4.20.x prior to 4.20.8"}, {"status": "affected", "version": "4.19.x prior to 4.19.21"}]}], "source": "PSIRT-CNA@flexerasoftware.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "9548E713-B38D-4759-A85F-097A587EB96A", "versionEndExcluding": "4.19.21", "versionStartIncluding": "4.17", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D24491DB-D4DD-4719-B553-28E8508833A4", "versionEndExcluding": "4.20.8", "versionStartIncluding": "4.20", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*", "matchCriteriaId": "07C312A0-CD2C-4B9C-B064-6409B25C278F", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the \"sctp_sendmsg()\" function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory."}, {"lang": "es", "value": "En el kernel de Linux, en versiones anteriores a las 4.20.8 y 4.19.21, un error de uso de memoria previamente liberada en la funci\u00f3n \"sctp_sendmsg()\" (net/sctp/socket.c) al gestionar la marca SCTP_SENDALL puede explotarse para corromper memoria"}], "id": "CVE-2019-8956", "lastModified": "2026-06-17T02:42:50.973", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-04-01T19:29:01.300", "references": [{"source": "PSIRT-CNA@flexerasoftware.com", "tags": ["Release Notes", "Vendor Advisory"], "url": 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"af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "url": "https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=ba59fb0273076637f0add4311faa990a5eec27c0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "https://secuniaresearch.flexerasoftware.com/secunia_research/2019-5/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://support.f5.com/csp/article/K12671141"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/3930-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/3930-2/"}], "sourceIdentifier": "PSIRT-CNA@flexerasoftware.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}, {"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "Kernel: SCTP: use-after-free while traversing list of endpoint associations", "id": "1679889", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1679889"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the \"sctp_sendmsg()\" function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory.", "A use-after-free issue was found in the Linux kernel's SCTP implementation. The issue could occur while traversing a list of endpoint associations to send a message to all of them via SCTP_SENDALL process. A user/process could use this flaw to crash the kernel resulting in a denial of service or potentially escalate privileges on a system."], "name": "CVE-2019-8956", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"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-alt", "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"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2019-02-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-8956\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-8956"], "statement": "This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6, 7, and Red Hat Enterprise MRG 2.", "threat_severity": "Important"}

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