CVE Vulnerability

CVE-2019-14284

In the Linux kernel before 5.2.3, drivers/block/floppy.c allows a denial of service by setup_format_params division-by-zero. Two consecutive ioctls can trigger the bug: the first one should set the drive geometry with .sect and .rate values that make F_SECT_PER_TRACK be zero. Next, the floppy format operation should be called. It can be triggered by an unprivileged local user even when a floppy disk has not been inserted. NOTE: QEMU creates the floppy device by default.

2.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

6.2 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.5 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3554aeb991214cbfafd17d55e2bfddb50282e32 Patch Vendor Advisory
https://github.com/torvalds/linux/commit/f3554aeb991214cbfafd17d55e2bfddb50282e32 Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3 Release Notes Vendor Advisory
https://www.debian.org/security/2019/dsa-4495
https://seclists.org/bugtraq/2019/Aug/13
https://www.debian.org/security/2019/dsa-4497
https://seclists.org/bugtraq/2019/Aug/18
https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html
https://seclists.org/bugtraq/2019/Aug/26
https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html
http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html
https://usn.ubuntu.com/4114-1/
https://usn.ubuntu.com/4117-1/
https://usn.ubuntu.com/4116-1/
https://usn.ubuntu.com/4115-1/
https://usn.ubuntu.com/4118-1/
https://security.netapp.com/advisory/ntap-20190905-0002/
http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Information

Published : 2019-07-26 01:15

Updated : 2019-08-11 11:15

NVD link : CVE-2019-14284

Mitre link : CVE-2019-14284

Products Affected
No products.
CWE
CWE-369

Divide By Zero