CVE-2019-15239

{"id": "CVE-2019-15239", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/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": "2019-08-20T08:15:11.717", "references": [{"url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html", "source": "cve@mitre.org"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html", "source": "cve@mitre.org"}, {"url": "https://access.redhat.com/errata/RHSA-2019:3978", "source": "cve@mitre.org"}, {"url": "https://access.redhat.com/errata/RHSA-2019:3979", "source": "cve@mitre.org"}, {"url": "https://access.redhat.com/errata/RHSA-2020:0027", "source": "cve@mitre.org"}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f582b248d0a86bae5788c548d7bb5bca6f7691a", "tags": ["Patch"], "source": "cve@mitre.org"}, {"url": "https://lore.kernel.org/stable/41a61a2f87691d2bc839f26cdfe6f5ff2f51e472.camel%40decadent.org.uk/", "source": "cve@mitre.org"}, {"url": "https://pulsesecurity.co.nz/advisories/linux-kernel-4.9-tcpsocketsuaf", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://salsa.debian.org/kernel-team/kernel-sec/blob/f6273af2d956a87296b6b60379d0a186c9be4bbc/active/CVE-2019-15239", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.debian.org/security/2019/dsa-4497", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, a certain net/ipv4/tcp_output.c change, which was properly incorporated into 4.16.12, was incorrectly backported to the earlier longterm kernels, introducing a new vulnerability that was potentially more severe than the issue that was intended to be fixed by backporting. Specifically, by adding to a write queue between disconnection and re-connection, a local attacker can trigger multiple use-after-free conditions. This can result in a kernel crash, or potentially in privilege escalation. NOTE: this affects (for example) Linux distributions that use 4.9.x longterm kernels before 4.9.190 or 4.14.x longterm kernels before 4.14.139."}, {"lang": "es", "value": "En el kernel de Linux, un cierto cambio del archivo net/ipv4/tcp_output.c, que fue incorporado apropiadamente en versi\u00f3n 4.16.12, fue respaldado incorrectamente en los primeros kernels a largo plazo, introduciendo una nueva vulnerabilidad que era potencialmente m\u00e1s severa que el problema que se pretend\u00eda solucionar mediante respaldo. Espec\u00edficamente, a\u00f1adiendo a una cola de escritura entre la desconexi\u00f3n y la reconexi\u00f3n, un atacante local puede desencadenar m\u00faltiples condiciones de uso de la memoria previamente liberada. Esto puede resultar en un bloqueo del kernel, o potencialmente en una escalada de privilegios. NOTA: esto afecta (por ejemplo) a las distribuciones de Linux que usan kernels de versiones 4.9.x a largo plazo anteriores a 4.9.190 o kernels de versiones 4.14.x a largo plazo anteriores a 4.14.139."}], "lastModified": "2023-11-07T03:05:27.200", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:4.16.12:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BD132D62-C0A4-4B9B-B30E-20E5DBEB63AE"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}