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CVE-2019-11487

Status Candidate

Overview

The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests.

Related Files

Red Hat Security Advisory 2020-3266-01
Posted Aug 3, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3266-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2019-11487
MD5 | 73b91f54609e54c1ebdfa4604823a751
Red Hat Security Advisory 2020-3230-01
Posted Jul 30, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3230-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-11487, CVE-2020-12888
MD5 | 0c33741e3da2c05299e4f940719eaed8
Red Hat Security Advisory 2020-2851-01
Posted Jul 7, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-2851-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service, memory leak, and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability, memory leak
systems | linux, redhat
advisories | CVE-2018-20169, CVE-2018-7191, CVE-2019-11487, CVE-2019-13233, CVE-2019-14821, CVE-2019-15916, CVE-2019-18660, CVE-2019-3901, CVE-2020-12888
MD5 | ab6dfbe7b66c734e8df4c1ec41536f41
Red Hat Security Advisory 2020-0834-01
Posted Mar 18, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0834-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-11487, CVE-2019-17666, CVE-2019-19338
MD5 | f77a8382079ef6bc1f5235dfa18158be
Red Hat Security Advisory 2020-0839-01
Posted Mar 18, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0839-01 - 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 and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-11487, CVE-2019-17666, CVE-2019-19338
MD5 | f2838bc7de71dc6656b7493ab22bcf47
Red Hat Security Advisory 2020-0174-01
Posted Jan 21, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0174-01 - The kernel-alt packages provide the Linux kernel version 4.x. Issues addressed include buffer overflow, bypass, denial of service, heap overflow, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2018-18559, CVE-2018-3693, CVE-2019-10126, CVE-2019-11487, CVE-2019-14814, CVE-2019-14815, CVE-2019-14816, CVE-2019-17133, CVE-2019-18660, CVE-2019-3846, CVE-2019-8912
MD5 | bbb36ba5cb7b3908d12d4a095ffb5372
Ubuntu Security Notice USN-4145-1
Posted Oct 1, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4145-1 - 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. It was discovered that the IPv6 implementation in the Linux kernel did not properly validate socket options 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
systems | linux, ubuntu
advisories | CVE-2016-10905, CVE-2017-18509, CVE-2018-20961, CVE-2018-20976, CVE-2019-0136, CVE-2019-10207, CVE-2019-11487, CVE-2019-13631, CVE-2019-15211, CVE-2019-15215, CVE-2019-15926
MD5 | ea50ef6fe5c28f797b35ddfa61c716dc
Red Hat Security Advisory 2019-2741-01
Posted Sep 11, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2741-01 - 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, bypass, denial of service, heap overflow, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-11487, CVE-2019-3846, CVE-2019-3887, CVE-2019-9500, CVE-2019-9503
MD5 | 9489ce13236817a5be2175c9cae721fd
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
Red Hat Security Advisory 2019-2703-01
Posted Sep 10, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2703-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, bypass, denial of service, heap overflow, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2018-19824, CVE-2019-11487, CVE-2019-12817, CVE-2019-3846, CVE-2019-3887, CVE-2019-9500, CVE-2019-9503
MD5 | df8aebdd79fb95d86af73d0ad346daa7
Ubuntu Security Notice USN-4118-1
Posted Sep 3, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4118-1 - It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-13053, CVE-2018-13093, CVE-2018-13098, CVE-2018-13099, CVE-2018-13100, CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14614, CVE-2018-14616, CVE-2018-14617, CVE-2018-16862, CVE-2018-19985, CVE-2018-20169, CVE-2018-20511, CVE-2018-20784, CVE-2018-20856, CVE-2018-5383, CVE-2019-0136, CVE-2019-10126, CVE-2019-10207, CVE-2019-10638, CVE-2019-10639, CVE-2019-11085, CVE-2019-11487, CVE-2019-11599
MD5 | 606239d761ad7f615ccb6ead5cc82c96
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-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-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
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