CVE-2017-18241 : fs/f2fs/segment.c in the Linux kernel before 4.13 allows local users to cause a

fs/f2fs/segment.c in the Linux kernel before 4.13 allows local users to cause a denial of service (NULL pointer dereference and panic) by using a noflush_merge option that triggers a NULL value for a flush_cmd_control data structure.

Published 2018-03-21 16:29:00

Updated 2019-03-18 15:20:54

Source MITRE

View at NVD, CVE.org

Vulnerability category: Memory CorruptionDenial of service

Products affected by CVE-2017-18241

Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
Debian » Debian Linux » Version: 9.0
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions before (<) 4.13
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 14.04 LTS Edition
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 16.04 LTS Edition
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2017-18241

EPSS FAQ

0.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 6 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-18241

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.9	MEDIUM	AV:L/AC:L/Au:N/C:N/I:N/A:C	3.9	6.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
5.5	MEDIUM	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	1.8	3.6	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2017-18241

CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2017-18241

https://www.debian.org/security/2018/dsa-4188

Debian -- Security Information -- DSA-4188-1 linux
Third Party Advisory

CVEs referencing this url
https://github.com/torvalds/linux/commit/d4fdf8ba0e5808ba9ad6b44337783bd9935e0982

f2fs: fix a panic caused by NULL flush_cmd_control · torvalds/linux@d4fdf8b · GitHub
Patch;Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d4fdf8ba0e5808ba9ad6b44337783bd9935e0982

kernel/git/torvalds/linux.git - Linux kernel source tree
Patch;Vendor Advisory
https://usn.ubuntu.com/3910-1/

USN-3910-1: Linux kernel vulnerabilities | Ubuntu security notices
Third Party Advisory

CVEs referencing this url
https://www.debian.org/security/2018/dsa-4187

Debian -- Security Information -- DSA-4187-1 linux
Third Party Advisory

CVEs referencing this url
https://usn.ubuntu.com/3910-2/

USN-3910-2: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security notices
Third Party Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2017-18241

Products affected by CVE-2017-18241

Exploit prediction scoring system (EPSS) score for CVE-2017-18241

CVSS scores for CVE-2017-18241

CWE ids for CVE-2017-18241

References for CVE-2017-18241