CVE-2017-18241 — MEDIUM (5.5)

Q: How severe is CVE-2017-18241?

CVE-2017-18241 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2017-18241?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Canonical Ubuntu Linux.

Vulnerability Description

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.

CVSS Score

5.5

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Linux	Linux Kernel	< 4.13
Debian	Debian Linux	8.0
Canonical	Ubuntu Linux	14.04

Related Weaknesses (CWE)

CWE-476

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d4fdf8PatchVendor Advisory
https://github.com/torvalds/linux/commit/d4fdf8ba0e5808ba9ad6b44337783bd9935e098PatchThird Party Advisory
https://usn.ubuntu.com/3910-1/Third Party Advisory
https://usn.ubuntu.com/3910-2/Third Party Advisory
https://www.debian.org/security/2018/dsa-4187Third Party Advisory
https://www.debian.org/security/2018/dsa-4188Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d4fdf8PatchVendor Advisory
https://github.com/torvalds/linux/commit/d4fdf8ba0e5808ba9ad6b44337783bd9935e098PatchThird Party Advisory
https://usn.ubuntu.com/3910-1/Third Party Advisory
https://usn.ubuntu.com/3910-2/Third Party Advisory
https://www.debian.org/security/2018/dsa-4187Third Party Advisory
https://www.debian.org/security/2018/dsa-4188Third Party Advisory

FAQ

What is CVE-2017-18241?

CVE-2017-18241 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 ...

How severe is CVE-2017-18241?

CVE-2017-18241 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-18241?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Canonical Ubuntu Linux.