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CVE-2019-14284

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-4115-2
Posted Sep 11, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4115-2 - USN 4115-1 fixed vulnerabilities in the Linux 4.15 kernel for Ubuntu 18.04 LTS and Ubuntu 16.04 LTS. Unfortunately, as part of the update, a regression was introduced that caused a kernel crash when handling fragmented packets in some situations. This update addresses the issue. Various other issues were also addressed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-19985, CVE-2018-20784, CVE-2019-0136, CVE-2019-10207, CVE-2019-10638, CVE-2019-10639, CVE-2019-11487, CVE-2019-11599, CVE-2019-11810, CVE-2019-13631, CVE-2019-13648, CVE-2019-14283, CVE-2019-14284, CVE-2019-14763, CVE-2019-15090, CVE-2019-15211, CVE-2019-15212, CVE-2019-15214, CVE-2019-15215, CVE-2019-15216, CVE-2019-15218, CVE-2019-15220, CVE-2019-15221, CVE-2019-15292, CVE-2019-3701, CVE-2019-3819, CVE-2019-3900
MD5 | f3c403ca6993818b3a6b46a2dc892b23
Kernel Live Patch Security Notice LSN-0055-1
Posted Sep 7, 2019
Authored by Benjamin M. Romer

It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. It was discovered that the Bluetooth UART implementation in the Linux kernel did not properly check for missing tty operations. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux
advisories | CVE-2018-20856, CVE-2019-10207, CVE-2019-11478, CVE-2019-13233, CVE-2019-14283, CVE-2019-14284
MD5 | 024d77eed49a23432c14adc8f067c9ad
Ubuntu Security Notice USN-4116-1
Posted Sep 2, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4116-1 - It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. A local attacker could possibly use this to cause a denial of service or possibly execute arbitrary code. Amit Klein and Benny Pinkas discovered that the Linux kernel did not sufficiently randomize IP ID values generated for connectionless networking protocols. A remote attacker could use this to track particular Linux devices. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2018-20856, CVE-2019-10638, CVE-2019-13648, CVE-2019-14283, CVE-2019-14284, CVE-2019-3900
MD5 | 6f30126d89e5e8e65cce204ca2609eba
Ubuntu Security Notice USN-4117-1
Posted Sep 2, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4117-1 - It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service or possibly execute arbitrary code. Amit Klein and Benny Pinkas discovered that the Linux kernel did not sufficiently randomize IP ID values generated for connectionless networking protocols. A remote attacker could use this to track particular Linux devices. Various other issues were also addressed.

tags | advisory, remote, denial of service, overflow, arbitrary, kernel, protocol
systems | linux, ubuntu
advisories | CVE-2019-10126, CVE-2019-10638, CVE-2019-12984, CVE-2019-13233, CVE-2019-13272, CVE-2019-14283, CVE-2019-14284, CVE-2019-3846, CVE-2019-3900
MD5 | 5eadaf8ccbc112d9e27cc01c1d4ad083
Ubuntu Security Notice USN-4115-1
Posted Sep 2, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4115-1 - Hui Peng and Mathias Payer discovered that the Option USB High Speed driver in the Linux kernel did not properly validate metadata received from the device. A physically proximate attacker could use this to cause a denial of service. Zhipeng Xie discovered that an infinite loop could triggered in the CFS Linux kernel process scheduler. A local attacker could possibly use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-19985, CVE-2018-20784, CVE-2019-0136, CVE-2019-10207, CVE-2019-10638, CVE-2019-10639, CVE-2019-11487, CVE-2019-11599, CVE-2019-11810, CVE-2019-13631, CVE-2019-13648, CVE-2019-14283, CVE-2019-14284, CVE-2019-14763, CVE-2019-15090, CVE-2019-15211, CVE-2019-15212, CVE-2019-15214, CVE-2019-15215, CVE-2019-15216, CVE-2019-15218, CVE-2019-15220, CVE-2019-15221, CVE-2019-15292, CVE-2019-3701, CVE-2019-3819, CVE-2019-3900
MD5 | d33b91a9062e22127c5fc65115ec33fe
Ubuntu Security Notice USN-4114-1
Posted Sep 2, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4114-1 - Amit Klein and Benny Pinkas discovered that the Linux kernel did not sufficiently randomize IP ID values generated for connectionless networking protocols. A remote attacker could use this to track particular Linux devices. Praveen Pandey discovered that the Linux kernel did not properly validate sent signals in some situations on PowerPC systems with transactional memory disabled. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2019-10638, CVE-2019-13648, CVE-2019-14283, CVE-2019-14284, CVE-2019-3900
MD5 | 635859f0d4e4c0dfd65dacd8d57d3a34
Slackware Security Advisory - Slackware 14.2 kernel Updates
Posted Aug 14, 2019
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New kernel packages are available for Slackware 14.2 to fix security issues.

tags | advisory, kernel
systems | linux, slackware
advisories | CVE-2017-18509, CVE-2018-20856, CVE-2019-10207, CVE-2019-1125, CVE-2019-13631, CVE-2019-13648, CVE-2019-14283, CVE-2019-14284
MD5 | daa3ad79be18eef89b1ffad6c631278e
Debian Security Advisory 4497-1
Posted Aug 13, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4497-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2015-8553, CVE-2018-20836, CVE-2018-20856, CVE-2018-5995, CVE-2019-10207, CVE-2019-10638, CVE-2019-10639, CVE-2019-1125, CVE-2019-13631, CVE-2019-13648, CVE-2019-14283, CVE-2019-14284, CVE-2019-3882, CVE-2019-3900
MD5 | 5cbc4a8b5b504c3bf0d4fe88ab472dd3
Debian Security Advisory 4495-1
Posted Aug 12, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4495-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2018-20836, CVE-2019-10207, CVE-2019-10638, CVE-2019-1125, CVE-2019-12817, CVE-2019-12984, CVE-2019-13233, CVE-2019-13631, CVE-2019-13648, CVE-2019-14283, CVE-2019-14284, CVE-2019-1999
MD5 | 554e753dba15cc884dc560e11fa9aaed
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