CVE-2011-3149

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"vulnerable": true}, {"criteria": "cpe:2.3:a:linux-pam:linux-pam:1.1.3:*:*:*:*:*:*:*", "matchCriteriaId": "4B696CDD-C93E-4E88-B2DC-BB9978D879E2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption)."}, {"lang": "es", "value": "La funci\u00f3n _expand_arg en el m\u00f3dulo pam_env (modules / pam_env / pam_env.c) en Linux-PAM (tambi\u00e9n conocido como pam) antes de v1.1.5 no controla correctamente cuando la expansi\u00f3n de la variable de entorno puede desbordarse, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (el consumo de CPU)."}], "id": "CVE-2011-3149", "lastModified": "2026-06-16T23:32:45.370", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2012-07-22T17:55:01.103", "references": [{"source": "cve@mitre.org", "url": "http://git.fedorahosted.org/git/?p=linux-pam.git%3Ba=commitdiff%3Bh=109823cb621c900c07c4b6cdc99070d354d19444"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/46583"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/49711"}, {"source": "cve@mitre.org", "url": "http://security.gentoo.org/glsa/glsa-201206-31.xml"}, {"source": "cve@mitre.org", "url": "http://www.ubuntu.com/usn/USN-1237-1"}, {"source": "cve@mitre.org", "url": "https://bugs.launchpad.net/ubuntu/+source/pam/+bug/874565"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://git.fedorahosted.org/git/?p=linux-pam.git%3Ba=commitdiff%3Bh=109823cb621c900c07c4b6cdc99070d354d19444"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/46583"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "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", "url": "http://www.ubuntu.com/usn/USN-1237-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugs.launchpad.net/ubuntu/+source/pam/+bug/874565"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Kees Cook (Google ChromeOS Team) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2013:0521", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "pam-0:1.1.1-13.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2013-02-20T00:00:00Z"}], "bugzilla": {"description": "(pam_env): Infinite loop by expanding certain arguments", "id": "746620", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=746620"}, "csaw": false, "cvss": {"cvss_base_score": "1.2", "cvss_scoring_vector": "AV:L/AC:H/Au:N/C:N/I:N/A:P", "status": "verified"}, "cwe": "CWE-835", "details": ["The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption)."], "name": "CVE-2011-3149", "package_state": [{"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"}], "public_date": "2011-10-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-3149\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-3149"], "statement": "This issue did not affect the versions of pam package as shipped with Red Hat Enterprise Linux 4 and 5.", "threat_severity": "Low"}

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