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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
MD5 | b286bd81dbf057eac9cc09a16bfc5763
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
MD5 | 49c446e887152f53e4978a368b950ed7
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
MD5 | 41062dc0a72a79f27648eeff44f918eb
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
MD5 | 891d7f413bcda9c61a938542509339f3
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
MD5 | 671c1872fd4e5b030b9ac4d973a235a6
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
MD5 | 89355d12b17a57544c4036152b14969e
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-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
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
MD5 | a08d6c0764fd808ec1d2ad89c0113cd9
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