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This can be triggered remotely\n\t from either side in both TLS and DTLS.\nWhen RSASSA-PSS signature verification is enabled, sending a\n\t maliciously constructed certificate chain can be used to cause a\n\t buffer overflow on the peer's stack, potentially leading to crash\n\t or remote code execution. 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"type": "osv", "title": "mbedtls - security update", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": true, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0487", "CVE-2017-18187", "CVE-2018-0488"], "modified": "2022-07-21T05:49:47", "id": "OSV:DSA-4138-1", "href": "https://osv.dev/vulnerability/DSA-4138-1", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "gentoo": [{"lastseen": "2023-06-02T15:08:52", "description": "### Background\n\nmbed TLS (previously PolarSSL) is an \u201ceasy to understand, use, integrate and expand\u201d implementation of the TLS and SSL protocols and the respective cryptographic algorithms and support code required. \n\n### Description\n\nMultiple vulnerabilities have been discovered in mbed TLS. Please review the CVE identifiers referenced below for details. \n\n### Impact\n\nA remote attacker, through multiple vectors, could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition. \n\n### Workaround\n\nThere is no known workaround at this time.\n\n### Resolution\n\nAll mbed TLS users should upgrade to the latest version:\n \n \n # emerge --sync\n # emerge --ask --oneshot --verbose \">=net-libs/mbedtls-2.7.2\"", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-04-22T00:00:00", "type": "gentoo", "title": "mbed TLS: Multiple vulnerabilites", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2017-18187", "CVE-2018-0487", "CVE-2018-0488"], "modified": "2018-04-22T00:00:00", "id": "GLSA-201804-19", "href": "https://security.gentoo.org/glsa/201804-19", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "ubuntu": [{"lastseen": "2023-06-02T15:29:26", "description": "## Releases\n\n * Ubuntu 16.04 ESM\n\n## Packages\n\n * mbedtls \\- lightweight crypto and SSL/TLS library - crypto library\n\nIt was discovered that mbedtls has a bounds-check bypass through an integer \noverflow that can be used by an attacked to execute arbitrary code or cause a \ndenial of service. \n(CVE-2017-18187)\n\nIt was discovered that mbedtls has a vulnerability where an attacker could \nexecute arbitrary code or cause a denial of service (buffer overflow) \nvia a crafted certificate chain that is mishandled during RSASSA-PSS \nsignature verification within a TLS or DTLS session. \n(CVE-2018-0487)\n\nIt was discovered that mbedtls has a vulnerability where an attacker could \nexecute arbitrary code or cause a denial of service (heap corruption) via a \ncrafted application packet within a TLS or DTLS session. \n(CVE-2018-0488)\n\nIt was discovered that mbedtls has a vulnerability that allows remote \nattackers to achieve partial plaintext recovery (for a CBC based ciphersuite) \nvia a timing-based side-channel attack. \n(CVE-2018-0497)\n\nIt was discovered that mbedtls has a vulnerability that allows local users to \nachieve partial plaintext recovery (for a CBC based ciphersuite) via a \ncache-based side-channel attack. \n(CVE-2018-0498)\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-05T00:00:00", "type": "ubuntu", "title": "ARM mbed TLS vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": true, "obtainUserPrivilege": false}, "cvelist": ["CVE-2017-18187", "CVE-2018-0487", "CVE-2018-0488", "CVE-2018-0497", "CVE-2018-0498"], "modified": "2020-02-05T00:00:00", "id": "USN-4267-1", "href": "https://ubuntu.com/security/notices/USN-4267-1", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}]}
CVE-2018-0487
