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CVE-2019-11833

Status Candidate

Overview

fs/ext4/extents.c in the Linux kernel through 5.1.2 does not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem.

Related Files

Red Hat Security Advisory 2019-3517-01
Posted Nov 6, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-3517-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service, heap overflow, information leakage, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2015-1593, CVE-2018-16884, CVE-2018-19854, CVE-2018-19985, CVE-2018-20169, CVE-2019-10126, CVE-2019-10207, CVE-2019-10638, CVE-2019-11599, CVE-2019-11833, CVE-2019-11884, CVE-2019-13233, CVE-2019-14821, CVE-2019-15916, CVE-2019-3459, CVE-2019-3460, CVE-2019-3874, CVE-2019-3882, CVE-2019-3900, CVE-2019-5489, CVE-2019-7222, CVE-2019-9506
SHA-256 | 03447a52c4980f374df664e7374cea8800a1174c9ab4df5eb1f470f7db1d6d0b
Red Hat Security Advisory 2019-3309-01
Posted Nov 6, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-3309-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include denial of service, heap overflow, information leakage, null pointer, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2018-16884, CVE-2018-19854, CVE-2018-19985, CVE-2018-20169, CVE-2019-10126, CVE-2019-10207, CVE-2019-10638, CVE-2019-11599, CVE-2019-11833, CVE-2019-11884, CVE-2019-13233, CVE-2019-14821, CVE-2019-15916, CVE-2019-3459, CVE-2019-3460, CVE-2019-3874, CVE-2019-3882, CVE-2019-3900, CVE-2019-5489, CVE-2019-7222, CVE-2019-9506
SHA-256 | 59cc375374ff6c15113d1988a4247e3d24bd10d07e2610dd9344468468bbc9e6
Kernel Live Patch Security Notice LSN-0058-1
Posted Oct 23, 2019
Authored by Benjamin M. Romer

It was discovered that a race condition existed in the GFS2 file system in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash). 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. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux
advisories | CVE-2016-10905, CVE-2018-20856, CVE-2018-20961, CVE-2018-20976, CVE-2018-21008, CVE-2019-0136, CVE-2019-10126, CVE-2019-10207, CVE-2019-11477, CVE-2019-11478, CVE-2019-11833, CVE-2019-12614, CVE-2019-14283, CVE-2019-14284, CVE-2019-14814, CVE-2019-14815, CVE-2019-14816, CVE-2019-14821, CVE-2019-14835, CVE-2019-2054, CVE-2019-2181, CVE-2019-3846
SHA-256 | 5442de6a129171e9103a7acd9d861ab0fda6074505e32a4ad08db9df45b30c61
Ubuntu Security Notice USN-4095-2
Posted Aug 14, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4095-2 - USN-4095-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM. Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-5383, CVE-2019-10126, CVE-2019-1125, CVE-2019-11833, CVE-2019-12614, CVE-2019-2054, CVE-2019-3846
SHA-256 | d920881c3d68724f3a5cfff94df2bf728ddbda002eda6e615804ba3f9aa609e1
Red Hat Security Advisory 2019-2043-01
Posted Aug 6, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2043-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, denial of service, information leakage, null pointer, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2018-10853, CVE-2018-13053, CVE-2018-13093, CVE-2018-13094, CVE-2018-13095, CVE-2018-14625, CVE-2018-14734, CVE-2018-15594, CVE-2018-16658, CVE-2018-16885, CVE-2018-18281, CVE-2018-7755, CVE-2018-8087, CVE-2018-9363, CVE-2018-9516, CVE-2018-9517, CVE-2019-11599, CVE-2019-11810, CVE-2019-11833, CVE-2019-3459, CVE-2019-3460, CVE-2019-3882, CVE-2019-3900, CVE-2019-5489, CVE-2019-7222
SHA-256 | e071d742d6603367cb65da2c4efe950228d4321aa8233e8b9ddce2ca45118e06
Red Hat Security Advisory 2019-2029-01
Posted Aug 6, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2029-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, denial of service, information leakage, null pointer, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2018-10853, CVE-2018-13053, CVE-2018-13093, CVE-2018-13094, CVE-2018-13095, CVE-2018-14625, CVE-2018-14734, CVE-2018-15594, CVE-2018-16658, CVE-2018-16885, CVE-2018-18281, CVE-2018-7755, CVE-2018-8087, CVE-2018-9363, CVE-2018-9516, CVE-2018-9517, CVE-2019-11599, CVE-2019-11810, CVE-2019-11833, CVE-2019-3459, CVE-2019-3460, CVE-2019-3882, CVE-2019-3900, CVE-2019-5489, CVE-2019-7222
SHA-256 | bac8beb8ce1ab8e43186837924865c4859c9dd53f0986287f9d903fc550005c1
Ubuntu Security Notice USN-4069-2
Posted Jul 31, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4069-2 - USN-4069-1 fixed vulnerabilities in the Linux kernel for Ubuntu 19.04. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 19.04 for Ubuntu 18.04 LTS. It was discovered that an integer overflow existed in the Linux kernel when reference counting pages, leading to potential use-after-free issues. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2019-11487, CVE-2019-11599, CVE-2019-11833, CVE-2019-11884
SHA-256 | 7b71c12f3bd388a0828bab337fa728612d93c06a585502533286dc5568d2b0ea
Ubuntu Security Notice USN-4076-1
Posted Jul 27, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4076-1 - It was discovered that a race condition existed in the Serial Attached SCSI implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service or execute arbitrary code. It was discovered that the ext4 file system implementation in the Linux kernel did not properly zero out memory in some situations. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-20836, CVE-2019-10142, CVE-2019-11833, CVE-2019-11884, CVE-2019-2054, CVE-2019-9503
SHA-256 | b13795081982c85c2eb246df67545853716b79439ee19e7a1344e8637acedcee
Ubuntu Security Notice USN-4069-1
Posted Jul 24, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4069-1 - It was discovered that an integer overflow existed in the Linux kernel when reference counting pages, leading to potential use-after-free issues. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Jann Horn discovered that a race condition existed in the Linux kernel when performing core dumps. A local attacker could use this to cause a denial of service or expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-11487, CVE-2019-11599, CVE-2019-11833, CVE-2019-11884
SHA-256 | 59868a26f79be380a03153a4ef3d8b3c9a12618231d06c2df1d94cb0bd3be8f3
Ubuntu Security Notice USN-4068-2
Posted Jul 23, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4068-2 - USN-4068-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 18.04 for Ubuntu 16.04 LTS. Adam Zabrocki discovered that the Intel i915 kernel mode graphics driver in the Linux kernel did not properly restrict mmap ranges in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2019-11085, CVE-2019-11815, CVE-2019-11833, CVE-2019-11884
SHA-256 | 0c4bf61b72468fcd59a246b2fd84f8d7a3793a8a497b643ce532083fd7e116b5
Ubuntu Security Notice USN-4068-1
Posted Jul 23, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4068-1 - Adam Zabrocki discovered that the Intel i915 kernel mode graphics driver in the Linux kernel did not properly restrict mmap ranges in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that a race condition leading to a use-after-free existed in the Reliable Datagram Sockets protocol implementation in the Linux kernel. The RDS protocol is blacklisted by default in Ubuntu. If enabled, a local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2019-11085, CVE-2019-11815, CVE-2019-11833, CVE-2019-11884
SHA-256 | 02490b8df8309a7ab7a198abb51f67d20d6ceaf3205fe71ffb4771c1202d0d72
Debian Security Advisory 4465-1
Posted Jun 19, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4465-1 - 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-2019-10126, CVE-2019-11477, CVE-2019-11478, CVE-2019-11479, CVE-2019-11486, CVE-2019-11599, CVE-2019-11815, CVE-2019-11833, CVE-2019-11884, CVE-2019-3846, CVE-2019-5489, CVE-2019-9500, CVE-2019-9503
SHA-256 | 6462989fedaf07301b47a2563bc368b80ca7dfd5c7c7901bf9c00004dffd9a54
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