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"https://lists.debian.org/debian-security-announce/2022/msg00069.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-07-04T02:19:06", "description": "- -------------------------------------------------------------------------\nDebian LTS Advisory DLA-2935-1 debian-lts@lists.debian.org\nhttps://www.debian.org/lts/security/ Emilio Pozuelo Monfort\nMarch 07, 2022 https://wiki.debian.org/LTS\n- -------------------------------------------------------------------------\n\nPackage : expat\nVersion : 2.2.0-2+deb9u5\nCVE ID : CVE-2022-23852 CVE-2022-25235 CVE-2022-25236 CVE-2022-25313\n CVE-2022-25315\nDebian Bug : 1005894 1005895\n\nSeveral vulnerabilities have been discovered in Expat, an XML parsing C\nlibrary, which could result in denial of service or potentially the\nexecution of arbitrary code, if a malformed XML file is processed.\n\nFor Debian 9 stretch, these problems have been fixed in version\n2.2.0-2+deb9u5.\n\nWe recommend that you upgrade 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Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system.", "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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-08-15T00:00:00", "type": "checkpoint_advisories", "title": "Expat XML Parser Remote Code Execution (CVE-2022-25236)", "bulletinFamily": "info", "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": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-25236"], "modified": "2022-08-15T00:00:00", "id": "CPAI-2022-0505", "href": "", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "redhatcve": [{"lastseen": "2023-09-01T00:37:55", "description": "A flaw was found in expat. Passing one or more namespace separator characters in the \"xmlns[:prefix]\" attribute values made expat send malformed tag names to the XML processor on top of expat. This issue causes arbitrary code execution depending on how unexpected cases are handled inside the XML processor.\n#### Mitigation\n\nThere is no known mitigation other than restricting applications using the expat library from processing untrusted XML content. 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NULL;\n var el_string = NULL;\n var rpm_spec_vers_cmp = NULL;\n var epoch = NULL;\n var allowmaj = NULL;\n var exists_check = NULL;\n if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];\n if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];\n if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];\n if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];\n if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];\n if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];\n if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];\n if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];\n if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];\n if (reference &&\n _release &&\n rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&\n (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&\n rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;\n }\n}\n\nif (flag)\n{\n var extra = NULL;\n if (empty_or_null(applicable_repo_urls)) extra = rpm_report_get() + redhat_report_repo_caveat();\n else extra = rpm_report_get() + redhat_report_package_caveat();\n security_report_v4(\n port : 0,\n severity : SECURITY_HOLE,\n extra : extra\n );\n exit(0);\n}\nelse\n{\n var tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'expat / expat-devel');\n}\n", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2023-05-17T16:48:18", "description": "According to the versions of the expat packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :\n\n - xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 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