{"containers": {"cna": {"affected": [{"product": "Linux kernel before 4.6.2", "vendor": "n/a", "versions": [{"status": "affected", "version": "Linux kernel before 4.6.2"}]}], "datePublic": "2017-05-15T00:00:00", "descriptions": [{"lang": "en", "value": "fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users' files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file."}], "problemTypes": [{"descriptions": [{"description": "filesystem mishandling", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-09-08T19:57:01", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f47168841376824"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://source.android.com/security/bulletin/2017-09-01"}, {"name": "98491", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/98491"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1450261"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.openwall.com/lists/oss-security/2017/05/15/2"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824"}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T16:04:11.875Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f47168841376824"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://source.android.com/security/bulletin/2017-09-01"}, {"name": "98491", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/98491"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1450261"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2017/05/15/2"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824"}]}]}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2017-7495", "datePublished": "2017-05-15T18:00:00", "dateReserved": "2017-04-05T00:00:00", "dateUpdated": "2024-08-05T16:04:11.875Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"acknowledgement": "Red Hat would like to thank Takeshi Nishimura (NEC) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2017:2077", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-693.rt56.617.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-08-01T00:00:00Z"}, {"advisory": "RHSA-2017:1842", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-693.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-08-01T00:00:00Z"}, {"advisory": "RHSA-2017:2669", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2017-09-06T00:00:00Z"}], "bugzilla": {"description": "kernel: ext4: power failure during write(2) causes on-disk information leak", "id": "1450261", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1450261"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.2", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "status": "verified"}, "cwe": "CWE-665", "details": ["fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users' files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file.", "A vulnerability was found in the Linux kernel where filesystems mounted with data=ordered mode may allow an attacker to read stale data from recently allocated blocks in new files after a system 'reset' by abusing ext4 mechanics of delayed allocation."], "mitigation": {"lang": "en:us", "value": "Alternative filesystems may be used in place of ext4 in case of sensitive data leak. Alternatively, don't hard reset the system."}, "name": "CVE-2017-7495", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-alt", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2017-05-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-7495\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-7495\nhttp://seclists.org/oss-sec/2017/q2/259\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824"], "statement": "This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 and 6.\nThis issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2.  Future Linux kernel updates for the respective releases may address this issue.\nfs", "threat_severity": "Moderate"}