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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
MD5 | 6d1ca3b131a0815a02a22b4f2f5f2856
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
MD5 | a0f2e867941fc69f77f5654ca781bae3
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
MD5 | aa1b2d5e0e41264715ab20ee76ffa47d
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
MD5 | fec8c0285fc4a3d18f3dac325367c9bd
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
MD5 | 396c021234e85bd85be4ed53ce333c58
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
MD5 | 91bf814ce959e44a2c4748ee469254c3
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
MD5 | eed12995fb3ecba8be58c706282a29f2
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
MD5 | a41128b78295c6c7d2326b4f154bb7db
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
MD5 | 6df771797de75dc230e8feb33ae00aae
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
MD5 | f5fe64d4eb14a1ae9bfe582e0a11c93b
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
MD5 | bc5a5d2564a39eba34cfa7a32e3ae1c5
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
MD5 | a2e7d7ad8cd5265b8a90186bcd82ff4d
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