PT-2020-16166 · Linux +8 · Linux Kernel +8

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A flaw in the Linux kernel performance monitoring subsystem was found, related to the use of PERF EVENT IOC SET FILTER. This issue could allow a local user to cause a denial of service...

kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c

A flaw was found in the Linux kernel. A NULL pointer dereference flaw was found in the QLOGIC drivers for HBA. A call to allocworkqueue return was not validated and can cause a denial of service. The highest threat from this vulnerability is to system availability...

kernel: NFS client crash due to index buffer overflow during Direct IO write causing kernel panic

A flaw was found in the Linux kernel. An index buffer overflow during Direct IO write leading to the NFS client to crash. In some cases, a reach out of the index after one memory allocation by kmalloc will cause a kernel panic. The highest threat from this vulnerability is to data confidentiality...

kernel: uninitialized kernel data leak in userspace coredumps

A flaw was found in the Linux kernel’s implementation of Userspace core dumps. This flaw allows an attacker with a local account to crash a trivial program and exfiltrate private kernel data...

Security Bulletin: Publicly disclosed vulnerability from Kernel affects IBM Netezza Host Management

Summary Kernel is used by IBM Netezza Host Management. This bulletin provides mitigation for the reported CVE. Vulnerability Details CVEID: CVE-2020-9383 DESCRIPTION: Linux Kernel could allow a local attacker to obtain sensitive information, caused by an out-of-bounds read flaw in the setfdc...

CVE-2020-10768

A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl function, where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threa...

CVE-2020-10720

A flaw was found in the Linux kernel's implementation of GRO in versions before 5.2. This flaw allows an attacker with local access to crash the system...

kernel: sync of excessive duration via an XFS v5 image with crafted metadata

A flaw was discovered in the XFS source in the Linux kernel. This flaw allows an attacker with the ability to mount an XFS filesystem, to trigger a denial of service while attempting to sync a file located on an XFS v5 image with crafted metadata...

kernel: kernel: DAX hugepages not considered during mremap

A flaw was found in the way mremap handled DAX Huge Pages. This flaw allows a local attacker with access to a DAX enabled storage to escalate their privileges on the system...

kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c

A flaw was found in the Linux kernel. The Marvell mwifiex driver allows a remote WiFi access point to trigger a heap-based memory buffer overflow due to an incorrect memcpy operation. The highest threat from this vulnerability is to data integrity and system availability...

kernel: kernel: DAX hugepages not considered during mremap

A flaw was found in the way mremap handled DAX Huge Pages. This flaw allows a local attacker with access to a DAX enabled storage to escalate their privileges on the system...

Important: kernel-livepatch-4.14.177-139.253

Issue Overview: A flaw was found in the Linux kernel's implementation of some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6. When an encrypted tunnel is created between two hosts, the kernel isn't correctly routing tunneled data over the encrypted link; rather sending...

Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario

A flaw was found in the Linux kernel, where it allows userspace processes, for example, a guest VM, to directly access h/w devices via its VFIO driver modules. The VFIO modules allow users to enable or disable access to the devices' MMIO memory address spaces. If a user attempts to access the...

CVE-2020-10732

A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an attacker with a local account to crash a trivial program and exfiltrate private kernel data...

CVE-2020-10732

A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an attacker with a local account to crash a trivial program and exfiltrate private kernel data...

kernel: dos in mlx5_fpga_conn_create_cq() function in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c

A flaw was found in the Linux kernel. The Mellanox Technologies Innova driver mishandles resource cleanup on error. An attacker, able to trigger error could use this flaw to crash the system. The highest threat from this vulnerability is to system availability...

kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c

A flaw was found in the Linux kernel’s implementation of dropping sysctl entries. A local attacker who has access to load modules on the system can trigger a condition during module load failure and panic the system...

kernel: triggering AP to send IAPP location updates for stations before the required authentication process has completed can lead to DoS

A flaw was found in the Linux kernel’s implementation of the WiFi station handoff code. An attacker within the radio range could use this flaw to deny a valid device from joining the access point...

The vulnerability of the ext4_protect_reserved inode function (fs/ext4/block_validity.c) in the Linux kernel allows a attacker to cause a service failure.

The vulnerability of the ext4protectreserved inode function fs/ext4/blockvalidity.c in the Linux kernel involves uncontrolled resource consumption. Exploiting this vulnerability could allow an attacker to cause service failures...

kernel: powerpc: local user can read vector registers of other users' processes via a Facility Unavailable exception

A flaw in the Linux kernel on the PowerPC platform, was found where a local user can read vector registers of other user processes via a Facility Unavailable exception. An attacker must start a transaction when the FPU operation begins or there is no leakage. Vector registers will become corrupte...