Ubuntu.comUB:CVE-2017-18193CVE-2017-18193
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.0004 Low
EPSS
Percentile
5.1%
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.
Notes
| Author | Note |
|---|---|
| tyhicks | The affected user base for this issue is likely small since f2fs is not the default filesystem and it is not widely used in Ubuntu |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 16.04 | noarch | linux | < 4.4.0-127.153 | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1022.22 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1060.69 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-azure | < 4.13.0-1005.7 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-gcp | < 4.13.0-1002.5 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-hwe | < 4.13.0-26.29~16.04.2 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-hwe-edge | < 4.13.0-26.29~16.04.2 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-kvm | < 4.4.0-1026.31 | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-lts-xenial | < 4.4.0-127.153~14.04.1 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-raspi2 | < 4.4.0-1090.98 | UNKNOWN |
References
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dad48e73127ba10279ea33e6dbc8d3905c4d31c0
github.com/torvalds/linux/commit/dad48e73127ba10279ea33e6dbc8d3905c4d31c0
launchpad.net/bugs/cve/CVE-2017-18193
nvd.nist.gov/vuln/detail/CVE-2017-18193
security-tracker.debian.org/tracker/CVE-2017-18193
ubuntu.com/security/notices/USN-3654-1
ubuntu.com/security/notices/USN-3654-2
ubuntu.com/security/notices/USN-3656-1
www.cve.org/CVERecord?id=CVE-2017-18193
Related
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.0004 Low
EPSS
Percentile
5.1%