USN-4887-1: Linux kernel vulnerabilities

De4dCr0w of 360 Alpha Lab discovered that the BPF verifier in the Linux kernel did not properly handle mod32 destination register truncation when the source register was known to be 0. A local attacker could use this to expose sensitive information kernel memory or possibly execute arbitrary code...

USN-4887-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke-5.3, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe, linux-hwe-5.4, linux-hwe-5.8, linux-kvm, linux-oem-5.10, linux-oem-5.6, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-raspi2-5.3 vulnerabilities

De4dCr0w of 360 Alpha Lab discovered that the BPF verifier in the Linux kernel did not properly handle mod32 destination register truncation when the source register was known to be 0. A local attacker could use this to expose sensitive information kernel memory or possibly execute arbitrary code...

Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4883-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4883-1 advisory. Adam Nichols discovered that heap overflows existed in the iSCSI subsystem in the Linux kernel. A local attacker could use this to cause a...

Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerability (USN-4753-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-4753-1 advisory. It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker wi...

Updated kernel-linus packages fix security issues

This kernel-linus update is based on upstream 5.10.25 and fixes at least the following security issues: A NULL pointer dereference flaw was found in the Linux kernel's GPU Nouveau driver functionality in versions prior to 5.12-rc1 in the way the user calls ioctl DRMIOCTLNOUVEAUCHANNELALLOC. This...

Updated kernel packages fix security issues

This kernel update is based on upstream 5.10.25 and fixes at least the following security issues: Unprivileged BPF programs running on affected systems can bypass the protection and execute speculatively out-of-bounds loads from any location within the kernel memory. This can be abused to extract...

MGASA-2021-0151 Updated kernel packages fix security issues

This kernel update is based on upstream 5.10.25 and fixes at least the following security issues: Unprivileged BPF programs running on affected systems can bypass the protection and execute speculatively out-of-bounds loads from any location within the kernel memory. This can be abused to extract...

MGASA-2021-0152 Updated kernel-linus packages fix security issues

This kernel-linus update is based on upstream 5.10.25 and fixes at least the following security issues: A NULL pointer dereference flaw was found in the Linux kernel's GPU Nouveau driver functionality in versions prior to 5.12-rc1 in the way the user calls ioctl DRMIOCTLNOUVEAUCHANNELALLOC. This...

Important: kernel

Issue Overview: An issue was discovered in the Linux kernel 3.11 through 5.10.16, as used by Xen. To service requests to the PV backend, the driver maps grant references provided by the frontend. In this process, errors may be encountered. In one case, an error encountered earlier might be...

Amazon Linux 2 : kernel (ALAS-2021-1616)

The version of kernel installed on the remote host is prior to 4.14.225-168.357. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1616 advisory. An issue was discovered in the Linux kernel 3.11 through 5.10.16, as used by Xen. To service requests to the PV...

OracleVM 3.4 : kernel-uek (OVMSA-2021-0008)

The remote OracleVM system is missing necessary patches to address security updates: - An issue was discovered in the Linux kernel through 5.11.3. A kernel pointer leak can be used to determine the address of the iscsitransport structure. When an iSCSI transport is registered with the iSCSI...

Unbreakable Enterprise kernel-container security update

4.14.35-2047.501.2.el7 - scsi: iscsi: Verify lengths on passthrough PDUs Chris Leech Orabug: 32634994 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi: iscsi: Ensure sysfs attributes are limited to PAGESIZE Chris Leech Orabug: 32634994 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi: iscsi...

Unbreakable Enterprise kernel security update

4.14.35-2047.501.2 - scsi: iscsi: Verify lengths on passthrough PDUs Chris Leech Orabug: 32634994 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi: iscsi: Ensure sysfs attributes are limited to PAGESIZE Chris Leech Orabug: 32634994 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi: iscsi:...

Unbreakable Enterprise kernel-container security update

5.4.17-2036.104.5.el7 - scsi: iscsi: Verify lengths on passthrough PDUs Chris Leech Orabug: 32603379 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi: iscsi: Ensure sysfs attributes are limited to PAGESIZE Chris Leech Orabug: 32603379 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi: iscsi:...

Unbreakable Enterprise kernel security update

4.1.12-124.48.6 - scsi: iscsi: Verify lengths on passthrough PDUs Chris Leech Orabug: 32603382 - scsi: iscsi: Ensure sysfs attributes are limited to PAGESIZE Chris Leech Orabug: 32603382 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi: iscsi: Report connection state in sysfs Gabriel Krisman...

Unbreakable Enterprise kernel security update

5.4.17-2036.104.5 - scsi: iscsi: Verify lengths on passthrough PDUs Chris Leech Orabug: 32603379 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi: iscsi: Ensure sysfs attributes are limited to PAGESIZE Chris Leech Orabug: 32603379 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi: iscsi:...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2021-9113)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9113 advisory. - scsi: iscsi: Ensure sysfs attributes are limited to PAGESIZE Chris Leech Orabug: 32603382 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi:...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2021-9114)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9114 advisory. - scsi: iscsi: Verify lengths on passthrough PDUs Chris Leech Orabug: 32603379 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi: iscsi: Ensure...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9115)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9115 advisory. - scsi: iscsi: Verify lengths on passthrough PDUs Chris Leech Orabug: 32603379 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi: iscsi: Ensure...

Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2021-9112)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9112 advisory. - scsi: iscsi: Verify lengths on passthrough PDUs Chris Leech Orabug: 32634994 CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 - scsi: iscsi: Ensure sysfs...