CVE-2023-2640

{"id": "CVE-2023-2640", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/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}, {"type": "Secondary", "source": "security@ubuntu.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/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": "2023-07-26T02:15:09.300", "references": [{"url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640", "tags": ["Third Party Advisory"], "source": "security@ubuntu.com"}, {"url": "https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.html", "tags": ["Mailing List", "Patch"], "source": "security@ubuntu.com"}, {"url": "https://ubuntu.com/security/notices/USN-6250-1", "tags": ["Vendor Advisory"], "source": "security@ubuntu.com"}, {"url": "https://wiz.io/blog/ubuntu-overlayfs-vulnerability", "tags": ["Exploit", "Mitigation", "Third Party Advisory"], "source": "security@ubuntu.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-863"}]}, {"type": "Secondary", "source": "security@ubuntu.com", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "On Ubuntu kernels carrying both c914c0e27eb0 and \"UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs\", an unprivileged user may set privileged extended attributes on the mounted files, leading them to be set on the upper files without the appropriate security checks."}], "lastModified": "2023-08-03T15:10:48.043", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:23.04:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B2E702D7-F8C0-49BF-9FFB-883017076E98"}], "operator": "OR"}]}], "sourceIdentifier": "security@ubuntu.com"}