CVE-2017-18249

HIGH
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a61ddf8117c26ac5b295e1233eaa9629a94ca3

http://www.securitytracker.com/id/1041432

https://github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94ca3

https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html

https://usn.ubuntu.com/3932-1/

https://usn.ubuntu.com/3932-2/

Details

Source: MITRE

Published: 2018-03-26

Updated: 2019-04-03

Type: CWE-362

Risk Information

CVSS v2

Base Score: 4.4

Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3

Base Score: 7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1

Severity: HIGH

Tenable Plugins

View all (14 total)

IDNameProductFamilySeverity
124818EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1495)NessusHuawei Local Security Checks
high
123927SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0901-1)NessusSuSE Local Security Checks
high
123681Ubuntu 14.04 LTS : linux-lts-xenial, linux-aws vulnerabilities (USN-3932-2)NessusUbuntu Local Security Checks
medium
123680Ubuntu 16.04 LTS : linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities (USN-3932-1)NessusUbuntu Local Security Checks
medium
122879Debian DLA-1715-1 : linux-4.9 security update (Spectre)NessusDebian Local Security Checks
high
121966Photon OS 2.0: Linux PHSA-2018-2.0-0072NessusPhotonOS Local Security Checks
high
121860Photon OS 1.0: Linux PHSA-2018-1.0-0165NessusPhotonOS Local Security Checks
high
121505Slackware 14.2 : Slackware 14.2 kernel (SSA:2019-030-01)NessusSlackware Local Security Checks
high
118272SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1855-2)NessusSuSE Local Security Checks
high
111956Photon OS 2.0: Linux PHSA-2018-2.0-0072 (deprecated)NessusPhotonOS Local Security Checks
medium
111945Photon OS 1.0: Linux PHSA-2018-1.0-0165 (deprecated)NessusPhotonOS Local Security Checks
high
110838SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1855-1)NessusSuSE Local Security Checks
high
110660SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:1772-1)NessusSuSE Local Security Checks
high
110658openSUSE Security Update : the Linux Kernel (openSUSE-2018-656) (Spectre)NessusSuSE Local Security Checks
high