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Fencer Intel
medium 5.5

CVE-2018-13095 json

An issue was discovered in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel through 4.17.3.

published 8y ago modified 4mo ago also EUVD-2018-5044

cvss
5.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

An issue was discovered in fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel through 4.17.3. A denial of service (memory corruption and BUG) can occur for a corrupted xfs image upon encountering an inode that is in extent format, but has more extents than fit in the inode fork.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.18.6-1

debian advisories DEBIAN-CVE-2018-13095

  • linux Ubuntu 16.04 LTS 4.4.0-208.240
  • linux Ubuntu 18.04 LTS 4.15.0-141.145
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1126.140
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1098.105
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1097.110~16.04.1
  • linux-gcp Ubuntu 18.04 LTS 5.0.0-1020.20~18.04.1
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-142.146~16.04.1
  • linux-kvm Ubuntu 16.04 LTS 4.4.0-1091.100

ubuntu advisories UBUNTU-CVE-2018-13095

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 RHEL 7 3.10.0-1062.el7
  • perf RHEL 7 3.10.0-1062.el7
  • bpftool RHEL 7 3.10.0-1062.el7
  • python-perf RHEL 7 3.10.0-1062.el7
  • kernel-kdump RHEL 7 3.10.0-1062.el7
  • kernel-tools RHEL 7 3.10.0-1062.el7
  • kernel-tools-libs RHEL 7 3.10.0-1062.el7
  • kernel-bootwrapper RHEL 7 3.10.0-1062.el7

red hat advisories RHSA-2019:2029RHSA-2019:2043RHSA-2019:1350

  • kernel-azure SLE Module for Public Cloud 15 4.12.14-5.16.1
  • kernel-syms-azure SLE Module for Public Cloud 15 4.12.14-5.16.1
  • kernel-source-azure SLE Module for Public Cloud 15 4.12.14-5.16.1
  • kernel-syms SLES for SAP 12 SP2, SLES 12 SP2-LTSS, SLES 12 SP2-BCL +2 more 4.4.121-92.95.1
  • kernel-source SLES for SAP 12 SP2, SLES 12 SP2-LTSS, SLES 12 SP2-BCL +2 more 4.4.121-92.95.1
  • lttng-modules SLES for SAP 12 SP2, SLES 12 SP2-LTSS, SLES 12 SP2-BCL +2 more 2.7.1-9.6.1
  • kernel-default SLES for SAP 12 SP2, SLES 12 SP2-LTSS, SLES 12 SP2-BCL +3 more 4.4.121-92.95.1
  • kgraft-patch-SLE12-SP2_Update_25 SLES for SAP 12 SP2, SLES 12 SP2-LTSS, OpenStack Cloud 7 +1 more 1-3.4.1

suse advisories SUSE-SU-2018:3961-1SUSE-SU-2018:3084-1SUSE-SU-2018:2980-1SUSE-SU-2018:2981-1SUSE-SU-2018:2862-1SUSE-SU-2018:2858-1

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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-2018-13095 updated cvss 5.0

kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c

  • Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-1062.el7, kernel 3.10.0-1062.el7, bpftool 3.10.0-1062.el7, python-perf 3.10.0-1062.el7, kernel-tools 3.10.0-1062.el7, kernel-tools-libs 3.10.0-1062.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1062.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-1062.el7, kernel 3.10.0-1062.el7, bpftool 3.10.0-1062.el7, python-perf 3.10.0-1062.el7, kernel-tools 3.10.0-1062.el7, kernel-tools-libs 3.10.0-1062.el7, +2 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1062.el7
    fixed: vendor fix RHSA-2019:2029
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) perf 4.14.0-115.8.1.el7a, kernel 4.14.0-115.8.1.el7a, kernel-alt 4.14.0-115.8.1.el7a, python-perf 4.14.0-115.8.1.el7a, kernel-tools 4.14.0-115.8.1.el7a, kernel-tools-libs 4.14.0-115.8.1.el7a, +3 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debuginfo-common-ppc64le 4.14.0-115.8.1.el7a
    fixed: vendor fix RHSA-2019:1350
  • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-1062.rt56.1022.el7, kernel-rt-trace 3.10.0-1062.rt56.1022.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1062.rt56.1022.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-1062.rt56.1022.el7, kernel-rt-kvm 3.10.0-1062.rt56.1022.el7, kernel-rt-trace 3.10.0-1062.rt56.1022.el7, kernel-rt-debug-kvm 3.10.0-1062.rt56.1022.el7, kernel-rt-trace-kvm 3.10.0-1062.rt56.1022.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1062.rt56.1022.el7
    fixed: vendor fix RHSA-2019:2043
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-1062.el7, kernel 3.10.0-1062.el7, bpftool 3.10.0-1062.el7, python-perf 3.10.0-1062.el7, kernel-kdump 3.10.0-1062.el7, kernel-tools 3.10.0-1062.el7, +7 more Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-1062.el7, kernel-debuginfo-common-x86_64 3.10.0-1062.el7, kernel-debuginfo-common-ppc64le 3.10.0-1062.el7 Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-1062.el7, kernel 3.10.0-1062.el7, bpftool 3.10.0-1062.el7, python-perf 3.10.0-1062.el7, kernel-tools 3.10.0-1062.el7, kernel-tools-libs 3.10.0-1062.el7, +2 more Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1062.el7
    fixed: vendor fix RHSA-2019:2029
  • 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 8 perf, kernel, bpftool, kernel-core, kernel-tools, python3-perf, +17 more
    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

1.51% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel 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.