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CVE-2019-14283

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Date: July 26, 2019

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.

Language: C

Severity Score

Related Resources (26)

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html
https://security-tracker.debian.org/tracker/CVE-2019-14283
https://seclists.org/bugtraq/2019/Aug/13
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://nvd.nist.gov/vuln/detail/CVE-2019-14283
https://seclists.org/bugtraq/2019/Aug/18
https://access.redhat.com/security/cve/CVE-2019-14283
https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html
http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
https://usn.ubuntu.com/4116-1/
https://usn.ubuntu.com/4114-1/
https://security.netapp.com/advisory/ntap-20190905-0002/
https://usn.ubuntu.com/4118-1/
https://seclists.org/bugtraq/2019/Aug/26
https://www.debian.org/security/2019/dsa-4495
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-14283
https://github.com/torvalds/linux/commit/da99466ac243f15fbba65bd261bfc75ffa1532b6
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=da99466ac243f15fbba65bd261bfc75ffa1532b6
https://www.debian.org/security/2019/dsa-4497
https://usn.ubuntu.com/4117-1/
https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html
https://usn.ubuntu.com/4115-1/
https://www.mend.io/vulnerability-database/CVE-2019-14283

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

Out-of-bounds Read

CWE-125

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): PHYSICAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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