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CVE-2020-25704

Status Candidate

Overview

A flaw memory leak in the Linux kernel performance monitoring subsystem was found in the way if using PERF_EVENT_IOC_SET_FILTER. A local user could use this flaw to starve the resources causing denial of service.

Related Files

Red Hat Security Advisory 2022-0595-02
Posted Mar 4, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0595-02 - Red Hat Advanced Cluster Management for Kubernetes 2.3.6 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section. Issues addressed include an information leakage vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-25704, CVE-2020-36322, CVE-2021-20321, CVE-2021-23566, CVE-2021-3521, CVE-2021-3712, CVE-2021-3872, CVE-2021-3918, CVE-2021-3984, CVE-2021-4019, CVE-2021-4034, CVE-2021-4122, CVE-2021-4155, CVE-2021-4192, CVE-2021-4193, CVE-2021-42574, CVE-2021-42739, CVE-2021-43565, CVE-2022-0155, CVE-2022-0185, CVE-2022-20612, CVE-2022-20617
SHA-256 | 2598df9c773007328e30775692ba0a74b35fca2f6cdbd52f2b81faf7636ae67b
Red Hat Security Advisory 2022-0236-04
Posted Jan 26, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0236-04 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. Issues addressed include a code execution vulnerability.

tags | advisory, code execution
systems | linux, redhat
advisories | CVE-2020-25704, CVE-2020-36322, CVE-2021-42739, CVE-2021-44832
SHA-256 | 3e5a6bec35c6856aa056bb4ac5262b34cdac38f80ac88be73be24efc217c752c
Red Hat Security Advisory 2022-0063-06
Posted Jan 16, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0063-06 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, kernel
systems | linux, redhat
advisories | CVE-2020-25704, CVE-2020-36322, CVE-2021-42739
SHA-256 | c84c038c92bb6a1bc8473039834465b0179c88c022a2c76894a288c9ffd97cd5
Red Hat Security Advisory 2022-0065-05
Posted Jan 12, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0065-05 - 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 overflow vulnerability.

tags | advisory, overflow, kernel
systems | linux, redhat
advisories | CVE-2020-25704, CVE-2020-36322, CVE-2021-42739
SHA-256 | 40e4a0ec6d21c586409f55a567705f5d041db004a9c79906afa098e121353a07
Red Hat Security Advisory 2021-2718-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2718-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include bypass and use-after-free vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-25704, CVE-2020-26541, CVE-2020-35508, CVE-2021-33034, CVE-2021-33909
SHA-256 | b5d2a86d6368571ef0d34128c40be52cab5354d30a4e4bbfcba727bd7eef99d6
Red Hat Security Advisory 2021-2719-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2719-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include bypass and use-after-free vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-25704, CVE-2020-26541, CVE-2020-35508, CVE-2021-33034, CVE-2021-33909
SHA-256 | e26fe41b898fa5fb54eb09bbc4300aeb69f3300632f9ea6b618e57cc39619d3a
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
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
Ubuntu Security Notice USN-4751-1
Posted Feb 25, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4751-1 - It was discovered that the console keyboard driver in the Linux kernel contained a race condition. A local attacker could use this to expose sensitive information. Minh Yuan discovered that the tty driver in the Linux kernel contained race conditions when handling fonts. A local attacker could possibly use this to expose sensitive information. Bodong Zhao discovered a use-after-free in the Sun keyboard driver implementation in the Linux kernel. 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-2020-25656, CVE-2020-25668, CVE-2020-25669, CVE-2020-25704, CVE-2020-27673, CVE-2020-27675, CVE-2020-27777, CVE-2020-27815, CVE-2020-27830, CVE-2020-27835, CVE-2020-28588, CVE-2020-28974, CVE-2020-29568, CVE-2020-29569, CVE-2020-29660, CVE-2020-29661, CVE-2020-35508
SHA-256 | e9d3e10fdaf8851fce0f2b40b30eae653fe05a491bcde750907baec6b6f2532b
Ubuntu Security Notice USN-4711-1
Posted Jan 28, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4711-1 - It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data. Kiyin discovered that the perf subsystem in the Linux kernel did not properly deallocate memory in some situations. A privileged attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2020-25704, CVE-2020-28374
SHA-256 | f4ec8d5e13f6ebabd01ab8ec3a0edd91e652d99a1c9951bea7a7b8fc134c23a1
Ubuntu Security Notice USN-4710-1
Posted Jan 28, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4710-1 - Kiyin discovered that the perf subsystem in the Linux kernel did not properly deallocate memory in some situations. A privileged attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2020-25704
SHA-256 | 3f9f38ab4060865d88734c05ff9899a702686eaf27a9c57039f4618d29d60dbd
Ubuntu Security Notice USN-4679-1
Posted Jan 6, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4679-1 - It was discovered that the console keyboard driver in the Linux kernel contained a race condition. A local attacker could use this to expose sensitive information. Minh Yuan discovered that the tty driver in the Linux kernel contained race conditions when handling fonts. A local attacker could possibly use this to expose sensitive information. Kiyin discovered that the perf subsystem in the Linux kernel did not properly deallocate memory in some situations. A privileged 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-2020-25656, CVE-2020-25668, CVE-2020-25704, CVE-2020-27675, CVE-2020-27777, CVE-2020-28974
SHA-256 | e07a56f716a668c737472e102593ca166693a53044d142d9b71babb7156fc5f3
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