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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 2020-4182-01
Posted Oct 8, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4182-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2019-11487
SHA-256 | 70f9e0b34e87a26dabf039f795af55ce67711dc96ecbe1b33c01e585525764c4
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
SHA-256 | 6ae1129e1b25b96fc2ace5795ed1e0c0c1277336f5bfa98c8dab8d7df69e5c17
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
SHA-256 | e2c5658f6a32e72ac2642fe9e8bce73e937d283ef62460929a9bd789cb1d0bec
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
SHA-256 | f605c3a284c143f78a257a18fb53f755d5eb05795ee953c04511eef9931e7052
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
SHA-256 | 758a425822c3749b7f1c327d3b1465dd171e616d8dec19e7e019946e186c08ee
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
SHA-256 | 86bf34ad4e6ff350aaa75831b2d6bf93552d185d2baf99a97059c30ad2a3aa0b
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
SHA-256 | 41e823b22c4390a682c7e17368c6a219fa08a99933b55c2e18c9b56883fb0b0f
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
SHA-256 | d8ef831cccbb75205a0fe90a3bdbf104e78019136be3165a75d091b11d684f97
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
SHA-256 | 5f9e06ffb42d649fcd1a5f4909c6f524bed20e4c72252170dc1208e70a2ea784
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
SHA-256 | 05acda341e120b77b16aad0ba3eb54346f60a3e3997eca4a108689927624648c
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
SHA-256 | 6aacbcf84bb45ef802cdd0185418df3143d468b0ab80ee560822676b92380c24
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
SHA-256 | 4f908bb81d9ebb9dd129fad885aa16a8ad89f97c5c09adc998aefff895ea8268
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
SHA-256 | 08121c3db54d152e12d06507d23ec168fbb76db1ad82346d206b3edabc68482d
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-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
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