CVE-2010-3431

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:linux-pam:linux-pam:1.1.2:*:*:*:*:*:*:*", "matchCriteriaId": "56F68CBA-E64A-4085-8902-5EBF9A5349D6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not check the return value of the setfsuid system call, which might allow local users to obtain sensitive information by leveraging an unintended uid, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-3435."}, {"lang": "es", "value": "La aplicaci\u00f3n de escalada de privilegios en los mod\u00falos (1) y (2) pam_mail de Linux-PAM (tambi\u00e9n conocido como pam) v1.1.2 no comprueba el valor devuelto de la llamada al sistema setfsuid, lo que podr\u00eda permitir a usuarios locales obtener informaci\u00f3n sensible aprovechando un identificador de usuario no deseado, como lo demuestra un ataque de enlace simb\u00f3lico en el archivo pam_environment en el directorio home del usuario. NOTA: esta vulnerabilidad existe debido a una soluci\u00f3n incompleta para CVE-2010-3435."}], "id": "CVE-2010-3431", "lastModified": "2026-06-16T23:22:45.327", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 1.9, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2011-01-24T18:00:01.970", "references": [{"source": "secalert@redhat.com", "url": "http://git.altlinux.org/people/ldv/packages/?p=pam.git%3Ba=commit%3Bh=843807a3a90f52e7538be756616510730a24739a"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://openwall.com/lists/oss-security/2010/09/21/10"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://openwall.com/lists/oss-security/2010/09/21/3"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://openwall.com/lists/oss-security/2010/09/21/8"}, {"source": "secalert@redhat.com", "url": "http://openwall.com/lists/oss-security/2010/09/21/9"}, {"source": "secalert@redhat.com", "url": "http://openwall.com/lists/oss-security/2010/09/27/10"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://openwall.com/lists/oss-security/2010/09/27/4"}, {"source": "secalert@redhat.com", "url": "http://openwall.com/lists/oss-security/2010/09/27/5"}, {"source": "secalert@redhat.com", "url": "http://openwall.com/lists/oss-security/2010/09/27/7"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://openwall.com/lists/oss-security/2010/10/03/1"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://openwall.com/lists/oss-security/2010/10/25/2"}, {"source": "secalert@redhat.com", "url": "http://secunia.com/advisories/49711"}, {"source": "secalert@redhat.com", "url": "http://security.gentoo.org/glsa/glsa-201206-31.xml"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://www.openwall.com/lists/oss-security/2010/09/21/11"}, {"source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2010/09/24/2"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=641361"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://git.altlinux.org/people/ldv/packages/?p=pam.git%3Ba=commit%3Bh=843807a3a90f52e7538be756616510730a24739a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://openwall.com/lists/oss-security/2010/09/21/10"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://openwall.com/lists/oss-security/2010/09/21/3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://openwall.com/lists/oss-security/2010/09/21/8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://openwall.com/lists/oss-security/2010/09/21/9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://openwall.com/lists/oss-security/2010/09/27/10"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://openwall.com/lists/oss-security/2010/09/27/4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://openwall.com/lists/oss-security/2010/09/27/5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://openwall.com/lists/oss-security/2010/09/27/7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://openwall.com/lists/oss-security/2010/10/03/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://openwall.com/lists/oss-security/2010/10/25/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/49711"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://security.gentoo.org/glsa/glsa-201206-31.xml"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://www.openwall.com/lists/oss-security/2010/09/21/11"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2010/09/24/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=641361"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "pam: pam_mail and pam_env incorrect privilege dropping", "id": "641361", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=641361"}, "csaw": false, "cvss": {"cvss_base_score": "1.9", "cvss_scoring_vector": "AV:L/AC:M/Au:N/C:P/I:N/A:N", "status": "draft"}, "details": ["The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not check the return value of the setfsuid system call, which might allow local users to obtain sensitive information by leveraging an unintended uid, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-3435."], "name": "CVE-2010-3431", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:3", "fix_state": "Not affected", "package_name": "pam", "product_name": "Red Hat Enterprise Linux 3"}, {"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Not affected", "package_name": "pam", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "pam", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "pam", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2010-09-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2010-3431\nhttps://nvd.nist.gov/vuln/detail/CVE-2010-3431"], "statement": "Not vulnerable. This issue did not affect the versions of pam as shipped with Red Hat Enterprise Linux 3, 4, 5, or 6.", "threat_severity": "Moderate"}

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