UBUNTU-CVE-2017-18193
Advisory lineage Upstream: 1 Downstream: 3
Upstream
Downstream
Published: 22 Feb 2018, 00:00
Last modified:22 Apr 2026, 11:22
Vulnerability Summary
Overall Risk (default)
low
22/100 CVSS Score
5.5 MEDIUM
3.0 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
22 Feb 2018, 00:00
Published
Vulnerability first disclosed
22 Apr 2026, 11:22
Last Modified
Vulnerability information updated
Description
fs/f2fs/extent_cache.c in the Linux kernel before 4.13 mishandles extent trees, which allows local users to cause a denial of service (BUG) via an application with multiple threads.
CVSS Metrics
- v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Systems
- ubuntu•linux
< 4.4.0-127.153
- ubuntu•linux-aws
< 4.4.0-1022.22 | < 4.4.0-1060.69
- ubuntu•linux-azure
< 4.13.0-1005.7
- ubuntu•linux-azure-fde
all
- ubuntu•linux-fips
< 4.4.0-1008.10
- ubuntu•linux-gcp
< 4.13.0-1002.5
- ubuntu•linux-gke
all
- ubuntu•linux-hwe
< 4.13.0-32.35~16.04.1
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1026.31
- ubuntu•linux-lts-xenial
< 4.4.0-127.153~14.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1090.98 | all
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all | all
- ubuntu•linux-snapdragon
< 4.4.0-1093.98
References (7)
- https://ubuntu.com/security/CVE-2017-18193
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dad48e73127ba10279ea33e6dbc8d3905c4d31c0
- https://github.com/torvalds/linux/commit/dad48e73127ba10279ea33e6dbc8d3905c4d31c0
- https://ubuntu.com/security/notices/USN-3654-1
- https://ubuntu.com/security/notices/USN-3654-2
- https://ubuntu.com/security/notices/USN-3656-1
- https://www.cve.org/CVERecord?id=CVE-2017-18193