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CVE-2021-4149

Status Candidate

Overview

A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem.

Related Files

Ubuntu Security Notice USN-6014-1
Posted Apr 13, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6014-1 - Xuewei Feng, Chuanpu Fu, Qi Li, Kun Sun, and Ke Xu discovered that the TCP implementation in the Linux kernel did not properly handle IPID assignment. A remote attacker could use this to cause a denial of service or inject forged data. Ke Sun, Alyssa Milburn, Henrique Kawakami, Emma Benoit, Igor Chervatyuk, Lisa Aichele, and Thais Moreira Hamasaki discovered that the Spectre Variant 2 mitigations for AMD processors on Linux were insufficient in some situations. A local attacker could possibly use this to expose sensitive information.

tags | advisory, remote, denial of service, kernel, local, tcp
systems | linux, ubuntu
advisories | CVE-2020-36516, CVE-2021-26401, CVE-2021-28713, CVE-2021-3428, CVE-2021-3659, CVE-2021-3669, CVE-2021-3732, CVE-2021-3772, CVE-2021-4149, CVE-2021-4203, CVE-2021-45868, CVE-2022-0487, CVE-2022-0494, CVE-2022-0617
SHA-256 | b35ca435930e16fd5c80695ace0a0339c873cee40fdedf7c96c3a446b1a7ff00
Ubuntu Security Notice USN-6013-1
Posted Apr 12, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6013-1 - Xuewei Feng, Chuanpu Fu, Qi Li, Kun Sun, and Ke Xu discovered that the TCP implementation in the Linux kernel did not properly handle IPID assignment. A remote attacker could use this to cause a denial of service or inject forged data. Ke Sun, Alyssa Milburn, Henrique Kawakami, Emma Benoit, Igor Chervatyuk, Lisa Aichele, and Thais Moreira Hamasaki discovered that the Spectre Variant 2 mitigations for AMD processors on Linux were insufficient in some situations. A local attacker could possibly use this to expose sensitive information.

tags | advisory, remote, denial of service, kernel, local, tcp
systems | linux, ubuntu
advisories | CVE-2020-36516, CVE-2021-26401, CVE-2021-3428, CVE-2021-3659, CVE-2021-3669, CVE-2021-3732, CVE-2021-3772, CVE-2021-4149, CVE-2021-4203, CVE-2021-45868, CVE-2022-0487, CVE-2022-0494, CVE-2022-0617, CVE-2022-1016
SHA-256 | a9c225928b1c28bf90c101180a361e5db4576ba6b23acb6d2f68a5da43566ceb
Ubuntu Security Notice USN-6001-1
Posted Apr 6, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6001-1 - Xuewei Feng, Chuanpu Fu, Qi Li, Kun Sun, and Ke Xu discovered that the TCP implementation in the Linux kernel did not properly handle IPID assignment. A remote attacker could use this to cause a denial of service or inject forged data. Ke Sun, Alyssa Milburn, Henrique Kawakami, Emma Benoit, Igor Chervatyuk, Lisa Aichele, and Thais Moreira Hamasaki discovered that the Spectre Variant 2 mitigations for AMD processors on Linux were insufficient in some situations. A local attacker could possibly use this to expose sensitive information.

tags | advisory, remote, denial of service, kernel, local, tcp
systems | linux, ubuntu
advisories | CVE-2020-36516, CVE-2021-26401, CVE-2021-28713, CVE-2021-3428, CVE-2021-3659, CVE-2021-3669, CVE-2021-3732, CVE-2021-3772, CVE-2021-4149, CVE-2021-4203, CVE-2021-45868, CVE-2022-0487, CVE-2022-0494, CVE-2022-0617
SHA-256 | 41aeeefd2d4b93824f7651b99bd053dcc55a7bddef73bc96c89bc61e6121be0c
Red Hat Security Advisory 2022-8852-01
Posted Dec 8, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-8852-01 - A fast multidimensional array facility for Python. Issues addressed include a null pointer vulnerability.

tags | advisory, python
systems | linux, redhat
advisories | CVE-2021-41495
SHA-256 | e7c358fe90f07722512e48d1b79078c54950be8243c60d15e1998e34cfef993b
Red Hat Security Advisory 2022-8861-01
Posted Dec 8, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-8861-01 - A fast multidimensional array facility for Python. Issues addressed include a null pointer vulnerability.

tags | advisory, python
systems | linux, redhat
advisories | CVE-2021-41495
SHA-256 | db4e9d888f93ad8c6a4af87ab7d72478e3a64fa36c30ba62261e5a5998b3d9a3
Ubuntu Security Notice USN-5466-1
Posted Jun 8, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5466-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-3772, CVE-2021-4149, CVE-2022-1016, CVE-2022-1419, CVE-2022-1966, CVE-2022-21499, CVE-2022-28356, CVE-2022-28390
SHA-256 | 9e093140c942146c4f472438fa3c252299e1fbbca9160eb536180ba6308f3bc7
Red Hat Security Advisory 2022-0987-01
Posted Mar 25, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0987-01 - An update for numpy is now available for Red Hat OpenStack Platform 16.1 (Train). Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow
systems | linux, redhat
advisories | CVE-2021-33430, CVE-2021-41496
SHA-256 | 8f212e13147ff5f1d179357380be23c53ea08e59c04c6df2c4f9bdbe36707630
Red Hat Security Advisory 2022-1000-01
Posted Mar 24, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1000-01 - A fast multidimensional array facility for Python. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow, python
systems | linux, redhat
advisories | CVE-2021-33430, CVE-2021-41496
SHA-256 | 76aa73135456b18c518d7251996c8c9ca909eae28e4bf2fe48da0e967d9c5497
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