CVE-2019-14283 Information

Description

In the Linux kernel before 5.2.3 set_geometry in drivers/block/floppy.c does not validate the sect and head fields as demonstrated by an integer overflow and out-of-bounds read. It can be triggered by an unprivileged local user when a floppy disk has been inserted. NOTE: QEMU creates the floppy device by default.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html 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 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=da99466ac243f15fbba65bd261bfc75ffa1532b6 https://github.com/torvalds/linux/commit/da99466ac243f15fbba65bd261bfc75ffa1532b6 https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html https://seclists.org/bugtraq/2019/Aug/13 https://seclists.org/bugtraq/2019/Aug/18 https://seclists.org/bugtraq/2019/Aug/26 https://security.netapp.com/advisory/ntap-20190905-0002/ https://usn.ubuntu.com/4114-1/ https://usn.ubuntu.com/4115-1/ https://usn.ubuntu.com/4116-1/ https://usn.ubuntu.com/4117-1/ https://usn.ubuntu.com/4118-1/ https://www.debian.org/security/2019/dsa-4495 https://www.debian.org/security/2019/dsa-4497

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.8