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CVE-2020-25212

Status Candidate

Overview

A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3 could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452.

Related Files

Red Hat Security Advisory 2021-1739-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1739-01 - 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, integer overflow, null pointer, out of bounds read, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-19523, CVE-2019-19528, CVE-2020-0431, CVE-2020-11608, CVE-2020-12114, CVE-2020-12362, CVE-2020-12464, CVE-2020-14314, CVE-2020-14356, CVE-2020-15437, CVE-2020-24394, CVE-2020-25212, CVE-2020-25284, CVE-2020-25285, CVE-2020-25643, CVE-2020-25704, CVE-2020-27786, CVE-2020-27835, CVE-2020-28974, CVE-2020-35508, CVE-2021-0342
SHA-256 | 31fce1366e86f02b959cd930b533a51fadb3cb331be2abae116fa24736734f3e
Red Hat Security Advisory 2021-1578-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1578-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service, integer overflow, memory leak, null pointer, out of bounds read, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability, memory leak
systems | linux, redhat
advisories | CVE-2019-18811, CVE-2019-19523, CVE-2019-19528, CVE-2020-0431, CVE-2020-11608, CVE-2020-12114, CVE-2020-12362, CVE-2020-12464, CVE-2020-14314, CVE-2020-14356, CVE-2020-15437, CVE-2020-24394, CVE-2020-25212, CVE-2020-25284, CVE-2020-25285, CVE-2020-25643, CVE-2020-25704, CVE-2020-27786, CVE-2020-27835, CVE-2020-28974, CVE-2020-35508, CVE-2020-36322, CVE-2021-0342
SHA-256 | 0b297866a632113c376963bf7d56d126ab8d48aba795a17aa0f66bba161b11ee
Red Hat Security Advisory 2021-0878-01
Posted Mar 17, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0878-01 - 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-2020-14351, CVE-2020-24394, CVE-2020-25212, CVE-2020-29661
SHA-256 | 6203ce3bcd4afe4ee341f532d73a8b94e8a9011620eccacf0351836cbb394a6e
Red Hat Security Advisory 2021-0760-01
Posted Mar 9, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0760-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2020-24394, CVE-2020-25212
SHA-256 | 8ab9a27f59391b5775c4114cc28e1e91a71bab3ef9b57e5d9b1cb360a669e9f5
Ubuntu Security Notice USN-4752-1
Posted Feb 25, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4752-1 - Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered that legacy pairing and secure-connections pairing authentication in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials via adjacent access. A physically proximate attacker could use this to impersonate a previously paired Bluetooth device. Jay Shin discovered that the ext4 file system implementation in the Linux kernel did not properly handle directory access with broken indexing, leading to an out-of-bounds read vulnerability. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2020-10135, CVE-2020-14314, CVE-2020-15436, CVE-2020-15437, CVE-2020-24490, CVE-2020-25212, CVE-2020-25284, CVE-2020-25641, CVE-2020-25643, CVE-2020-25704, CVE-2020-27152, CVE-2020-27815, CVE-2020-28588, CVE-2020-28915, CVE-2020-29368, CVE-2020-29369, CVE-2020-29371, CVE-2020-29660, CVE-2020-29661, CVE-2020-35508
SHA-256 | 9d423aca91d7f1b70463a45e888e4c441f17d4136f7beccf8bf581dc633b7a2e
Red Hat Security Advisory 2021-0526-01
Posted Feb 16, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0526-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2020-24394, CVE-2020-25212
SHA-256 | 4f1b75d8925e8d1a21a5653602e9c5580b2ee5cd0cff9e521eaffc51f7cf7037
Red Hat Security Advisory 2020-5437-01
Posted Dec 15, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5437-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer over-read and null pointer vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2019-18282, CVE-2020-10769, CVE-2020-14314, CVE-2020-14385, CVE-2020-24394, CVE-2020-25212, CVE-2020-25643
SHA-256 | 9d3708ba296874c5618cf8021564296dd4593f759f8d1496838e0ec07bf3fb11
Red Hat Security Advisory 2020-5441-01
Posted Dec 15, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5441-01 - 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 buffer over-read vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2019-18282, CVE-2020-10769, CVE-2020-14314, CVE-2020-14385, CVE-2020-24394, CVE-2020-25212, CVE-2020-25643
SHA-256 | 10fd709ec5317c6e9ff836aba241b2b37ab6793d5400a1db991201fa616e3608
Red Hat Security Advisory 2020-4279-01
Posted Oct 20, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4279-01 - The kernel-alt packages provide the Linux kernel version 4.x. Issues addressed include an information leakage vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2020-12351, CVE-2020-12352, CVE-2020-16166, CVE-2020-25212
SHA-256 | 3699f63fe43f86e6c44ae89e57ff19c771763fa6ea9bef8f89f0a03e12ce9ae8
Ubuntu Security Notice USN-4578-1
Posted Oct 14, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4578-1 - Hador Manor discovered that the DCCP protocol implementation in the Linux kernel improperly handled socket reuse, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Wen Xu discovered that the XFS file system in the Linux kernel did not properly validate inode metadata in some situations. 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, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2018-10322, CVE-2019-19448, CVE-2020-14314, CVE-2020-16119, CVE-2020-16120, CVE-2020-25212, CVE-2020-26088
SHA-256 | a18e9811720af271bf9d9804ef50e7f803fafb458b5d8d20274d49c2b6aa96b2
Ubuntu Security Notice USN-4527-1
Posted Sep 22, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4527-1 - It was discovered that the Conexant 23885 TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. A local attacker could use this to cause a denial of service. It was discovered that the Atheros HTC based wireless driver in the Linux kernel did not properly deallocate in certain error conditions. A local attacker could 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-2019-19054, CVE-2019-20811, CVE-2019-9445, CVE-2019-9453, CVE-2020-0067, CVE-2020-25212
SHA-256 | 2430b3c99e99151b0e6829325b42b1cab196a3854ee7fd01a6d240819db32636
Ubuntu Security Notice USN-4525-1
Posted Sep 22, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4525-1 - It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service. It was discovered that the Conexant 23885 TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. A local attacker could 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-2019-18808, CVE-2019-19054, CVE-2020-12888, CVE-2020-16166, CVE-2020-25212
SHA-256 | b66ee2d07baadb698741d0836d4e3ef0cf5a42260e045fa44b56a517a3e5389d
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