CVE-2021-35938

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{}

{"affected": [{"affectedData": [{"product": "RPM", "vendor": "n/a", "versions": [{"status": "affected", "version": "Fixed in rpm v4.18.0"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:rpm:rpm:*:*:*:*:*:*:*:*", "matchCriteriaId": "2E92EAAF-D2B5-458B-BBF4-363FD16D3931", "versionEndExcluding": "4.18.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials after installing a file. A local unprivileged user could use this flaw to exchange the original file with a symbolic link to a security-critical file and escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."}, {"lang": "es", "value": "Se ha encontrado un problema de enlaces simb\u00f3licos en rpm. Es producido cuando rpm establece los permisos y credenciales deseados despu\u00e9s de instalar un archivo. Un usuario local no privilegiado podr\u00eda usar este fallo para cambiar el archivo original por un enlace simb\u00f3lico a un archivo cr\u00edtico para la seguridad y escalar sus privilegios en el sistema. La mayor amenaza de esta vulnerabilidad es para la confidencialidad e integridad de los datos, as\u00ed como para la disponibilidad del sistema."}], "id": "CVE-2021-35938", "lastModified": "2026-06-17T03:57:57.830", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-08-25T20:15:09.307", "references": [{"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2021-35938"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1964114"}, {"source": "secalert@redhat.com", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.suse.com/show_bug.cgi?id=1157880"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/rpm-software-management/rpm/commit/25a435e90844ea98fe5eb7bef22c1aecf3a9c033"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/rpm-software-management/rpm/pull/1919"}, {"source": "secalert@redhat.com", "tags": ["Release Notes"], "url": "https://rpm.org/wiki/Releases/4.18.0"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202210-22"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2021-35938"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1964114"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.suse.com/show_bug.cgi?id=1157880"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/rpm-software-management/rpm/commit/25a435e90844ea98fe5eb7bef22c1aecf3a9c033"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/rpm-software-management/rpm/pull/1919"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "https://rpm.org/wiki/Releases/4.18.0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202210-22"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-59"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-59"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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Linux 9", "release_date": "2024-01-25T00:00:00Z"}, {"advisory": "RHSA-2024:0463", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "rpm-0:4.16.1.3-27.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-01-25T00:00:00Z"}, {"advisory": "RHSA-2024:0435", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "rpm-0:4.16.1.3-14.el9_0.1", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2024-01-25T00:00:00Z"}, {"advisory": "RHSA-2024:0453", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "rpm-0:4.16.1.3-24.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-01-25T00:00:00Z"}, {"advisory": "RHSA-2024:1477", "cpe": "cpe:/a:redhat:openshift:4.13::el9", "package": "openshift4-wincw/windows-machine-config-operator-bundle:v8.1.2-13", "product_name": "Red Hat OpenShift Container Platform 4.13", "release_date": "2024-03-25T00:00:00Z"}, {"advisory": "RHSA-2024:1477", "cpe": 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"cpe:/a:redhat:openshift_data_foundation:4.15::el9", "package": "odf4/odf-rhel9-operator:v4.15.0-19", "product_name": "RHODF-4.15-RHEL-9", "release_date": "2024-03-19T00:00:00Z"}, {"advisory": "RHSA-2024:1383", "cpe": "cpe:/a:redhat:openshift_data_foundation:4.15::el9", "package": "odf4/odr-cluster-operator-bundle:v4.15.0-158", "product_name": "RHODF-4.15-RHEL-9", "release_date": "2024-03-19T00:00:00Z"}, {"advisory": "RHSA-2024:1383", "cpe": "cpe:/a:redhat:openshift_data_foundation:4.15::el9", "package": "odf4/odr-hub-operator-bundle:v4.15.0-158", "product_name": "RHODF-4.15-RHEL-9", "release_date": "2024-03-19T00:00:00Z"}, {"advisory": "RHSA-2024:1383", "cpe": "cpe:/a:redhat:openshift_data_foundation:4.15::el9", "package": "odf4/odr-rhel9-operator:v4.15.0-21", "product_name": "RHODF-4.15-RHEL-9", "release_date": "2024-03-19T00:00:00Z"}, {"advisory": "RHSA-2024:1383", "cpe": "cpe:/a:redhat:openshift_data_foundation:4.15::el9", "package": "odf4/rook-ceph-rhel9-operator:v4.15.0-103", "product_name": "RHODF-4.15-RHEL-9", "release_date": "2024-03-19T00:00:00Z"}], "bugzilla": {"description": "rpm: races with chown/chmod/capabilities calls during installation", "id": "1964114", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1964114"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-59", "details": ["A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials after installing a file. A local unprivileged user could use this flaw to exchange the original file with a symbolic link to a security-critical file and escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.", "A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials after installing a file. A local unprivileged user could use this flaw to exchange the original file with a symbolic link to a security-critical file and escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2021-35938", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "rpm", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "rpm", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2021-06-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-35938\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-35938\nhttps://rpm.org/wiki/Releases/4.18.0"], "statement": "System and service accounts may have the required permissions to exploit this flaw. Conversely, regular user accounts should not be allowed to manipulate RPM artifacts during installation, thus reducing the attack surface and hence the impact of this flaw considerably.", "threat_severity": "Moderate"}

{}