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{"acknowledgement": "Red Hat would like to thank Roee Hay (HCL Technologies) for reporting this issue.", "bugzilla": {"description": "kernel: Out-of-bounds write in lp_setup in drivers/char/lp.c", "id": "1451685", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1451685"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.6", "cvss3_scoring_vector": "CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["Linux drivers/char/lp.c Out-of-Bounds Write. Due to a missing bounds check, and the fact that parport_ptr integer is static, a 'secure boot' kernel command line adversary (can happen due to bootloader vulns, e.g. Google Nexus 6's CVE-2016-10277, where due to a vulnerability the adversary has partial control over the command line) can overflow the parport_nr array in the following code, by appending many (>LP_NO) 'lp=none' arguments to the command line.", "A vulnerability was found in the Linux kernel's lp_setup() function where it doesn't apply any bounds checking when passing \"lp=none\". This can result into overflow of the parport_nr[] array. An attacker with control over kernel command line can overwrite kernel code and data with fixed (0xff) values."], "name": "CVE-2017-1000363", "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", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2017-05-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-1000363\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-1000363"], "statement": "This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2, as the code with the flaw is not built and shipped with the products listed.", "threat_severity": "Moderate"}