UBUNTU-CVE-2018-10840

Advisory lineage Upstream: 1 Downstream: 3
Upstream
CVE-2018-10840
Published: 16 Jul 2018, 00:00
Last modified:22 Apr 2026, 11:40

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.6 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Jul 2018, 00:00
Published
Vulnerability first disclosed
22 Apr 2026, 11:40
Last Modified
Vulnerability information updated

Description

Linux kernel is vulnerable to a heap-based buffer overflow in the fs/ext4/xattr.c:ext4_xattr_set_entry() function. An attacker could exploit this by operating on a mounted crafted ext4 image.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.6CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v3.0•MEDIUM•Score: 6.6CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • ubuntu•linux

    < 4.15.0-33.36

  • ubuntu•linux-aws

    < 4.15.0-1020.20

  • ubuntu•linux-azure

    < 4.15.0-1022.22~16.04.1 | < 4.15.0-1022.23

  • ubuntu•linux-gcp

    < 4.15.0-1018.19~16.04.2 | < 4.15.0-1018.19

  • ubuntu•linux-hwe

    < 4.15.0-33.36~16.04.1

  • ubuntu•linux-kvm

    < 4.15.0-1020.20

  • ubuntu•linux-oem

    < 4.15.0-1017.20

  • ubuntu•linux-raspi2

    < 4.15.0-1021.23

References (6)