Published: 27/07/2018 Updated: 14/06/2021

CVSS v2 Base Score: 7.1 | Impact Score: 6.9 | Exploitability Score: 8.6

CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8

VMScore: 632

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C

An issue exists in the Linux kernel up to and including 4.17.10. There is an invalid pointer dereference in io_ctl_map_page() when mounting and operating a crafted btrfs image, because of a lack of block group item validation in check_leaf_item in fs/btrfs/tree-checker.c.

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linux linux kernel

Several security issues were fixed in the Linux kernel ...

CWE-476 https://patchwork.kernel.org/patch/10503147/https://bugzilla.kernel.org/show_bug.cgi?id=199849 http://www.securityfocus.com/bid/104917 https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html https://usn.ubuntu.com/3932-2/https://usn.ubuntu.com/3932-1/https://usn.ubuntu.com/4094-1/https://usn.ubuntu.com/4118-1/https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://www.oracle.com/security-alerts/cpuApr2021.html https://nvd.nist.gov https://usn.ubuntu.com/4094-1/

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CVE-2018-14613

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