Astra Linux - уязвимость в linux, linux-5.10

A NULL pointer dereference flaw was discovered in the btrfsrmdevice function in fs/btrfs/volumes.c within the Linux Kernel. Triggering this bug requires CAPSYSADMIN. This flaw allows a local attacker to crash the system or leak kernel internal information. The greatest threat posed by this...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-414572)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-414572 advisory. A NULL pointer dereference flaw was found in the btrfsrmdevice function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires CAPSYSADMIN. Thi...

CVE-2021-3739

A NULL pointer dereference flaw was found in the btrfsrmdevice function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAPSYSADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability...

CVE-2021-3739

CVE-2021-3739 is a local NULL pointer dereference in the Linux kernel’s btrfs_rm_device() (fs/btrfs/volumes.c) that requires CAP_SYS_ADMIN to trigger. The issue can crash the system or leak kernel information, with impact to availability and, to a lesser extent, confidentiality. Multiple connecte...

Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-5137-2)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5137-2 advisory. It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use...

Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-5117-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5117-1 advisory. It was discovered that the btrfs file system in the Linux kernel did not properly handle removing a non- existent device id. An attacker with CAPSYSADMIN...

SUSE SLES15: cluster-md-kmp-rt / dlm-kmp-rt / gfs2-kmp-rt / kernel-devel-rt / etc (SUSE-SU-2021:3415-1)

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3415-1 advisory. The SUSE Linux Enterprise 15 SP3 kernel was updated. The following security bugs were fixed: - CVE-2020-3702: Fixed a bug which could be...

SUSE SLED15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2021:3207-1)

The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3207-1 advisory. The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: ...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2021-9457)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2021-9457 advisory. 5.4.17-2102.205.7.3 - btrfs: fix NULL pointer dereference when deleting device by invalid id Qu Wenruo Orabug: 33281078 CVE-2021-3739 Tenable has extracted...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9461)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2021-9461 advisory. 5.4.17-2102.205.7.3.el7 - btrfs: fix NULL pointer dereference when deleting device by invalid id Qu Wenruo Orabug: 33281078 CVE-2021-3739 Tenable has...

CVE-2021-3739

A NULL pointer dereference flaw was found in the btrfsrmdevice function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAPSYSADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability...

Linux kernel 代码问题漏洞

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel that originates in the Linux kernel's btrfsrmdevice that forces the dereferencing of a NULL pointer to trigger a denial of service...