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CVE-2018-20976

Status Candidate

Overview

An issue was discovered in fs/xfs/xfs_super.c in the Linux kernel before 4.18. A use after free exists, related to xfs_fs_fill_super failure.

Related Files

Red Hat Security Advisory 2020-0661-01
Posted Mar 3, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0661-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, heap overflow, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2018-20976, CVE-2019-14816, CVE-2019-14895, CVE-2019-17133, CVE-2019-17666
SHA-256 | 07c3208d83521bdb147c46e8789a694174d432353ebe0e71efc235c05ccdc65f
Red Hat Security Advisory 2020-0609-01
Posted Feb 26, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0609-01 - 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-2018-20976, CVE-2019-11085, CVE-2019-14895, CVE-2019-17133
SHA-256 | 1704e88839d3a2e0bb88213d4d92ae32aa951a7da471d4548ebd7e57aa5bbccd
Red Hat Security Advisory 2020-0592-01
Posted Feb 25, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0592-01 - 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-2018-20976, CVE-2019-11085, CVE-2019-14895, CVE-2019-17133
SHA-256 | 3be3e97d9cf47b79cdc4d236e0de82e7e19c550c90ec4264b3b8aced6ccf652b
Red Hat Security Advisory 2020-0543-01
Posted Feb 18, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0543-01 - 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-2018-20856, CVE-2018-20976, CVE-2019-11085, CVE-2019-11599, CVE-2019-14895, CVE-2019-17133, CVE-2019-17666
SHA-256 | 8ab8efed79f5f3bd7cd516f00264a695888543a958fe8fbb221191731955a067
Red Hat Security Advisory 2020-0178-01
Posted Jan 21, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0178-01 - 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-2018-20976
SHA-256 | 4aefe3f0af7f05d0d9df1b896a677f861d86821f3a7b3eaf5d293a23966a4602
Slackware Security Advisory - Slackware 14.2 kernel Updates
Posted Nov 8, 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-2016-10905, CVE-2016-10906, CVE-2018-20976, CVE-2019-10638, CVE-2019-14814, CVE-2019-14816, CVE-2019-14821, CVE-2019-14835, CVE-2019-15098, CVE-2019-15117, CVE-2019-15118, CVE-2019-15505, CVE-2019-16746, CVE-2019-17052, CVE-2019-17053, CVE-2019-17054, CVE-2019-17055, CVE-2019-17056, CVE-2019-17075, CVE-2019-17133, CVE-2019-2215, CVE-2019-3900
SHA-256 | bf62eae52a9e8701d96b669a2f1dc34dbcad875c47ff666c8f00d6add34b28a7
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-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
Ubuntu Security Notice USN-4144-1
Posted Oct 1, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4144-1 - It was discovered that the XFS file system in the Linux kernel did not properly handle mount failures in some situations. A local attacker could possibly use this to cause a denial of service or execute arbitrary code. Benjamin Moody discovered that the XFS file system in the Linux kernel did not properly handle an error condition when out of disk quota. A local attacker could possibly use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-20976, CVE-2019-15538
SHA-256 | 5dd65d9602394aefa348c4338b4b2eb8e342d2c44ad1989c239607e1f8bc53c8
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