NULL pointer dereference in Linux Kernel
CVE-2018-14612
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.026 (84.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/104917 (VDB Entry, Third Party Advisory, vdb-entry)
- patchwork.kernel.org/patch/10503403/ (Patch, Third Party Advisory)
- patchwork.kernel.org/patch/10503413/ (Patch, Third Party Advisory)
- bugzilla.kernel.org/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2019/03/msg00017.html (mailing-list)
- usn.ubuntu.com/3932-1/ (vendor-advisory)
- usn.ubuntu.com/3932-2/ (vendor-advisory)
- usn.ubuntu.com/4094-1/ (vendor-advisory)
- usn.ubuntu.com/4118-1/ (vendor-advisory)
- lists.debian.org/debian-lts-announce/2020/06/msg00011.html (mailing-list)
Frequently asked questions
- What is CVE-2018-14612?
- CVE-2018-14612 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2018-07-27.
- How severe is CVE-2018-14612?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2018-14612 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.