Xen PCI Passthrough Code Reading Back Hardware Registers DoS (XSA-337)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a denial of service DoS vulnerability. Code paths in Xen's MSI handling have been identified which act on unsanitized values read back from device hardware registers. While devices strict...

Denial Of Service (DoS)

xen is vulnerable to denial of service DoS. The vulnerability exists as the PCI passthrough code improperly uses register data, causing code paths in Xen's MSI handling to act on unsanitized values read back from device hardware registers...

USN-4525-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities

It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service memory exhaustion. CVE-2019-18808 It was discovered that the Conexant 23885 TV card device...

USN-4525-1: Linux kernel vulnerabilities

It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service memory exhaustion. CVE-2019-18808 It was discovered that the Conexant 23885 TV card device...

CVE-2020-25595

An issue was discovered in Xen through 4.14.x. The PCI passthrough code improperly uses register data. Code paths in Xen's MSI handling have been identified that act on unsanitized values read back from device hardware registers. While devices strictly compliant with PCI specifications shouldn't ...

CVE-2020-25595

An issue was discovered in Xen through 4.14.x. The PCI passthrough code improperly uses register data. Code paths in Xen's MSI handling have been identified that act on unsanitized values read back from device hardware registers. While devices strictly compliant with PCI specifications shouldn't ...

Privilege escalation

An issue was discovered in Xen through 4.14.x. The PCI passthrough code improperly uses register data. Code paths in Xen's MSI handling have been identified that act on unsanitized values read back from device hardware registers. While devices strictly compliant with PCI specifications shouldn't ...

CVE-2020-25595

An issue was discovered in Xen through 4.14.x. The PCI passthrough code improperly uses register data. Code paths in Xen's MSI handling have been identified that act on unsanitized values read back from device hardware registers. While devices strictly compliant with PCI specifications shouldn't ...

CVE-2020-25595

An issue was discovered in Xen through 4.14.x. The PCI passthrough code improperly uses register data. Code paths in Xen's MSI handling have been identified that act on unsanitized values read back from device hardware registers. While devices strictly compliant with PCI specifications shouldn't ...

CVE-2020-25595

An issue was discovered in Xen through 4.14.x. The PCI passthrough code improperly uses register data. Code paths in Xen's MSI handling have been identified that act on unsanitized values read back from device hardware registers. While devices strictly compliant with PCI specifications shouldn't ...

CVE-2020-25595

CVE-2020-25595 is a Xen PCI passthrough vulnerability disclosed across multiple advisories. The issue arises from PCI passthrough code that improperly uses register data; MSI handling paths operate on values read back from hardware registers that may be unsanitized. Impact is described as a poten...

USN-4526-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service memory exhaustion. CVE-2019-18808 It was discovered that the Conexant 23885 TV card device...

Vulnerabilities fixed in Xen

Xen developers have fixed vulnerabilities in the hypervisor. The vulnerability with reference CVE-2020-25604 makes it possible for a local malicious person who can migrate timers between vCPU-s to cause a denial-of-service. The vulnerability with attribute CVE-2020-25595 allows a local malicious...

PCI passthrough code reading back hardware registers

ISSUE DESCRIPTION Code paths in Xen's MSI handling have been identified which act on unsanitized values read back from device hardware registers. While devices strictly compliant with PCI specifications shouldn't be able to affect these registers, experience shows that it's very common for device...

Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4526-1)

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-4526-1 advisory. It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some...

Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4525-1)

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-4525-1 advisory. It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some...

Fintech industry developments, differences between Europe and the US

“Put your money in the bank and you can watch it grow.” If there is a statement that shows us how much the financial world has changed it’s this one. With the introduction of negative interest, companies and consumers with a large amount of liquid assets are looking for a different way to handle...

Report: 97% of Cybersecurity Companies Have Leaked Data on the Dark Web

In a new report into the global cybersecurity industry's exposure on the Dark Web this year, global application security company, ImmuniWeb, uncovered that 97% of leading cybersecurity companies have data leaks or other security incidents exposed on the Dark Web, while on average, there are over...

Top Security and Data Privacy Regulations for Financial Services

Regulatory compliance has become an increasingly more important part of the financial services industry in recent years. And it’s a trend that’s likely to continue due to the upsurge in cloud computing, the use of mobile applications, and a shift to IoT devices, all of which are driving exponenti...

openSUSE Security Update : the Linux Kernel (openSUSE-2020-1382)

The openSUSE Leap 15.2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2020-14314: Fixed potential negative array index in dosplit in ext4 bsc1173798. - CVE-2020-14386: Fixed an overflow in afpacket, which could lead to local privilege...