CVE-2018-14612

Public Exploit

Description

An issue was discovered in the Linux kernel through 4.17.10. There is an invalid pointer dereference in btrfs_root_node() when mounting a crafted btrfs image, because of a lack of chunk block group mapping validation in btrfs_read_block_groups in fs/btrfs/extent-tree.c, and a lack of empty-tree checks in check_leaf in fs/btrfs/tree-checker.c.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/104917 vdb entry third party advisory
https://patchwork.kernel.org/patch/10503403/ third party advisory patch
https://patchwork.kernel.org/patch/10503413/ third party advisory patch
https://bugzilla.kernel.org/show_bug.cgi?id=199847 issue tracking exploit third party advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html mailing list
https://usn.ubuntu.com/3932-1/ vendor advisory
https://usn.ubuntu.com/3932-2/ vendor advisory
https://usn.ubuntu.com/4094-1/ vendor advisory
https://usn.ubuntu.com/4118-1/ vendor advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html mailing list
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html mailing list

Frequently Asked Questions

What is the severity of CVE-2018-14612?
CVE-2018-14612 has been scored as a medium severity vulnerability.
How to fix CVE-2018-14612?
To fix CVE-2018-14612, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-14612 being actively exploited in the wild?
It is possible that CVE-2018-14612 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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