CVE-2012-0056

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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:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "86B2C115-07AE-4EC0-AB16-5C92A8E0467B", "versionEndExcluding": "3.0.18", "versionStartIncluding": "2.6.39", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "650F5839-D928-4B29-9E0B-246A4C0CC0D5", "versionEndExcluding": "3.2.2", "versionStartIncluding": "3.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/<pid>/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper."}, {"lang": "es", "value": "La funci\u00f3n mem_write en el kernel de Linux anterior a versi\u00f3n 3.2.2, cuando ASLR est\u00e1 deshabilitado, no comprueba apropiadamente los permisos al escribir en /proc/(pid)/mem, lo que permite a los usuarios locales alcanzar privilegios al modificar la memoria del proceso, como es demostrado por Mempodipper ."}], "id": "CVE-2012-0056", "lastModified": "2026-06-16T23:36:35.493", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 6.9, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2012-01-27T15:55:04.813", "references": [{"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://blog.zx2c4.com/749"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=e268337dfe26dfc7efd422a804dbb27977a3cccc"}, {"source": "secalert@redhat.com", "tags": ["Broken Link"], "url": "http://secunia.com/advisories/47708"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://ubuntu.com/usn/usn-1336-1"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory", "US Government Resource"], "url": "http://www.kb.cert.org/vuls/id/470151"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2012/01/18/1"}, 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"af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2012/01/18/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2012/01/18/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2012/01/19/4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2012/01/22/4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://www.redhat.com/support/errata/RHSA-2012-0052.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://www.redhat.com/support/errata/RHSA-2012-0061.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/51625"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=782642"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-264"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank J\u00fcri Aedla for reporting this issue.", "affected_release": [{"advisory": "RHSA-2012:0052", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-220.4.1.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2012-01-23T00:00:00Z"}, {"advisory": "RHSA-2012:0061", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-0:3.0.9-rt26.46.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2012-01-24T00:00:00Z"}], "bugzilla": {"description": "kernel: proc: /proc/<pid>/mem mem_write insufficient permission checking", "id": "782642", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=782642"}, "csaw": false, "cvss": {"cvss_base_score": "7.2", "cvss_scoring_vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "status": "verified"}, "cwe": "CWE-863", "details": ["The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/<pid>/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper."], "name": "CVE-2012-0056", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2012-01-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-0056\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-0056"], "statement": "This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 4 and 5 as it did not backport the upstream commit 198214a7ee. This has been addressed in Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2012-0052.html and https://rhn.redhat.com/errata/RHSA-2012-0061.html. For more information, please read https://access.redhat.com/kb/docs/DOC-69129.", "threat_severity": "Important"}

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