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CVE-2021-29650

Status Candidate

Overview

An issue was discovered in the Linux kernel before 5.11.11. The netfilter subsystem allows attackers to cause a denial of service (panic) because net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h lack a full memory barrier upon the assignment of a new table value, aka CID-175e476b8cdf.

Related Files

Ubuntu Security Notice USN-5343-1
Posted Mar 23, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5343-1 - Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. It was discovered that the aufs file system in the Linux kernel did not properly restrict mount namespaces, when mounted with the non-default allow_userns option set. A local attacker could use this to gain administrative privileges.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-2853, CVE-2016-2854, CVE-2018-5995, CVE-2019-19449, CVE-2020-12655, CVE-2020-25670, CVE-2020-25673, CVE-2020-26139, CVE-2020-26147, CVE-2020-26555, CVE-2020-26558, CVE-2020-36322, CVE-2020-36385, CVE-2021-20292, CVE-2021-20317, CVE-2021-23134, CVE-2021-28688, CVE-2021-28972, CVE-2021-29650, CVE-2021-32399, CVE-2021-33033, CVE-2021-33034, CVE-2021-33098, CVE-2021-34693, CVE-2021-3483, CVE-2021-3506, CVE-2021-3564
SHA-256 | f52b839ff13c30e863d5be66f515f639c4bbf6c3ac1911f54911c3a1db6abad1
Red Hat Security Advisory 2021-3653-01
Posted Sep 24, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3653-01 - Red Hat Advanced Cluster Management 2.1.11 security fix and container updates are available.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-27777, CVE-2021-22555, CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-23017, CVE-2021-29154, CVE-2021-29650, CVE-2021-31535, CVE-2021-32399, CVE-2021-36222, CVE-2021-3653, CVE-2021-37750
SHA-256 | 15f863255ce01b9af4125b6f699165597020889114335a232c7f75076dc7e35c
Red Hat Security Advisory 2021-3454-01
Posted Sep 8, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3454-01 - Red Hat Advanced Cluster Management for Kubernetes 2.3.2 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. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and security issues.

tags | advisory
systems | linux, redhat
advisories | CVE-2019-20149, CVE-2020-27777, CVE-2021-22543, CVE-2021-22555, CVE-2021-27218, CVE-2021-29154, CVE-2021-29650, CVE-2021-31535, CVE-2021-32399, CVE-2021-33195, CVE-2021-33197, CVE-2021-33198, CVE-2021-34558, CVE-2021-3609
SHA-256 | ededc503492f31daf90a74b29a6e64b1e7ee98978cd963f10901af9667484f8e
Red Hat Security Advisory 2021-3327-01
Posted Aug 31, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3327-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service, out of bounds write, and privilege escalation vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-27777, CVE-2021-22555, CVE-2021-29154, CVE-2021-29650, CVE-2021-32399
SHA-256 | b20ba2534d111110aaf1bd0add4dc3ab65b04821835470cce71af9635bd44116
Red Hat Security Advisory 2021-3328-01
Posted Aug 31, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3328-01 - 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, out of bounds write, and privilege escalation vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-22555, CVE-2021-29154, CVE-2021-29650, CVE-2021-32399
SHA-256 | 4f52d608a26aeced8b46022c6a00a641c50b6115116bab7260c93d4977dbab6a
Ubuntu Security Notice USN-4945-2
Posted May 19, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4945-2 - USN-4945-1 fixed vulnerabilities in the Linux kernel for Ubuntu 20.04 LTS and Ubuntu 18.04 LTS. This update provides the corresponding Linux kernel updates targeted specifically for Raspberry Pi devices in those same Ubuntu Releases. It was discovered that the Nouveau GPU driver in the Linux kernel did not properly handle error conditions in some situations. 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, vulnerability
systems | linux, ubuntu
advisories | CVE-2020-25639, CVE-2021-28038, CVE-2021-28375, CVE-2021-28660, CVE-2021-29265, CVE-2021-29650, CVE-2021-30002
SHA-256 | b7d2e192331fc5eeec68d356aef0b7b1f58186fdabc93af9473f0e7868618fd2
Ubuntu Security Notice USN-4949-1
Posted May 12, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4949-1 - Ryota Shiga discovered that the eBPF implementation in the Linux kernel did not properly verify that a BPF program only reserved as much memory for a ring buffer as was allocated. A local attacker could use this to cause a denial of service or execute arbitrary code. Manfred Paul discovered that the eBPF implementation in the Linux kernel did not properly track bounds on bitwise operations. A local attacker could use this to cause a denial of service or execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-25639, CVE-2021-26930, CVE-2021-26931, CVE-2021-28375, CVE-2021-29264, CVE-2021-29265, CVE-2021-29266, CVE-2021-29646, CVE-2021-29650, CVE-2021-3489, CVE-2021-3490, CVE-2021-3491
SHA-256 | 76d964fe9c27085f6742f1876c549a9562042eb085a4203978ffafc9d5a92ddc
Ubuntu Security Notice USN-4948-1
Posted May 12, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4948-1 - Ryota Shiga discovered that the eBPF implementation in the Linux kernel did not properly verify that a BPF program only reserved as much memory for a ring buffer as was allocated. A local attacker could use this to cause a denial of service or execute arbitrary code. Manfred Paul discovered that the eBPF implementation in the Linux kernel did not properly track bounds on bitwise operations. A local attacker could use this to cause a denial of service or execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-25670, CVE-2021-28688, CVE-2021-28951, CVE-2021-28952, CVE-2021-28964, CVE-2021-28971, CVE-2021-28972, CVE-2021-29264, CVE-2021-29266, CVE-2021-29646, CVE-2021-29647, CVE-2021-29649, CVE-2021-29650, CVE-2021-29657, CVE-2021-31916, CVE-2021-3483, CVE-2021-3489, CVE-2021-3490, CVE-2021-3491
SHA-256 | 957eb73e74d19d4c62c7116de0b476cf551491d297e087fb9602eff91b7ee985
Ubuntu Security Notice USN-4947-1
Posted May 12, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4947-1 - Kiyin discovered that the x25 implementation in the Linux kernel contained overflows when handling addresses from user space. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the fastrpc driver in the Linux kernel did not prevent user space applications from sending kernel RPC messages. A local attacker could possibly use this to gain elevated privileges. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-35519, CVE-2021-28375, CVE-2021-29646, CVE-2021-29650, CVE-2021-30002
SHA-256 | 0f3c9901fe7cb2bad1e41c261c51e0aa55d62c3d6c70d8302e4c8c01946ccb92
Ubuntu Security Notice USN-4946-1
Posted May 12, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4946-1 - It was discovered that the DRM subsystem in the Linux kernel contained double-free vulnerabilities. A privileged attacker could possibly use this to cause a denial of service or possibly execute arbitrary code. Olivier Benjamin, Norbert Manthey, Martin Mazein, and Jan H. Schoenherr discovered that the Xen paravirtualization backend in the Linux kernel did not properly propagate errors to frontend drivers in some situations. An attacker in a guest VM could possibly use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2021-20292, CVE-2021-26930, CVE-2021-26931, CVE-2021-28038, CVE-2021-28688, CVE-2021-29264, CVE-2021-29265, CVE-2021-29650, CVE-2021-30002
SHA-256 | 9dc6b159df273d7bcc3668b236d471f14d62790286458313509fbc9eb23c7579
Ubuntu Security Notice USN-4945-1
Posted May 12, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4945-1 - It was discovered that the Nouveau GPU driver in the Linux kernel did not properly handle error conditions in some situations. A local attacker could use this to cause a denial of service. Jan Beulich discovered that the Xen netback backend in the Linux kernel did not properly handle certain error conditions under paravirtualization. An attacker in a guest VM 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-2020-25639, CVE-2021-28038, CVE-2021-28375, CVE-2021-28660, CVE-2021-29265, CVE-2021-29650, CVE-2021-30002
SHA-256 | 5a76cc7c1c429c2a4eb7effc9105b11c6e36caf111681662c6bd8c168d7e4181
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