CVE-2018-14613

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-07-27 · updated 2026-06-17
Weakness: CWE-476

Description

An issue was discovered in the Linux kernel through 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.

Affected products

Linux kernel: through 4.17.10

References

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

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