Skip to content
Fencer Vulns
medium 5.5

CVE-2018-10323 json

The xfs_bmap_extents_to_btree function in fs/xfs/libxfs/xfs_bmap.c in the Linux kernel through 4.16.3 allows local users to cause a denial…

published 2018-04-24 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-2397

cvss
5.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

The xfs_bmap_extents_to_btree function in fs/xfs/libxfs/xfs_bmap.c in the Linux kernel through 4.16.3 allows local users to cause a denial of service (xfs_bmapi_write NULL pointer dereference) via a crafted xfs image.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.16.5-1

debian advisories DEBIAN-CVE-2018-10323

  • linux Ubuntu 14.04 LTS 3.13.0-157.207
  • linux Ubuntu 16.04 LTS 4.4.0-189.219
  • linux Ubuntu 18.04 LTS 4.15.0-33.36
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1113.126
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1020.20
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1018.19~16.04.2
  • linux-gcp Ubuntu 18.04 LTS 4.15.0-1018.19
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-33.36~16.04.1

ubuntu advisories UBUNTU-CVE-2018-10323

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel-source openSUSE Tumbleweed 5.14.6-1.4
  • kernel-source openSUSE Tumbleweed 6.6.17-1.1

opensuse advisories openSUSE-SU-2024:10728-1openSUSE-SU-2024:13704-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-10323 updated cvss 4.6

kernel: Invalid pointer dereference in xfs_bmapi_write() when mounting and operating on crafted xfs image allows denial of service

  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, kernel-alt, python-perf, +9 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-core, kernel-tools, python3-perf, +17 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugzilla.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=199423 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.