CVE-2020-25601

An issue was discovered in Xen through 4.14.x. There is a lack of preemption in evtchnreset / evtchndestroy. In particular, the FIFO event channel model allows guests to have a large number of event channels active at a time. Closing all of these when resetting all event channels or when cleaning...

CVE-2020-25596

An issue was discovered in Xen through 4.14.x. x86 PV guest kernels can experience denial of service via SYSENTER. The SYSENTER instruction leaves various state sanitization activities to software. One of Xen's sanitization paths injects a GP fault, and incorrectly delivers it twice to the guest...

CVE-2020-25601

An issue was discovered in Xen through 4.14.x. There is a lack of preemption in evtchnreset / evtchndestroy. In particular, the FIFO event channel model allows guests to have a large number of event channels active at a time. Closing all of these when resetting all event channels or when cleaning...

GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim

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The vulnerability of the enable_sacf_uaccess function in Linux operating system kernels, which allows a hacker to trigger a service failure

The vulnerability of the enablesacfuaccess function in Linux operating system kernels is related to errors during multi-threaded tasks race conditions. Exploiting this vulnerability can allow an attacker to cause service failures...

CVE-2020-15705 GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim

GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim...

Kernel update: Virtuozzo ReadyKernel patch 108.0 for Virtuozzo 7.0, Virtuozzo Infrastructure Platform 2.5, 3.0, Virtuozzo Hybrid Infrastructure 3.5

The cumulative Virtuozzo ReadyKernel patch was updated with stability fixes. The patch applies to all supported kernels of Virtuozzo 7.0, Virtuozzo Infrastructure Platform, Virtuozzo Hybrid Infrastructure. Vulnerability id: PSBM-104517 3.10.0-862.20.2.vz7.73.24 to 3.10.0-1062.12.1.vz7.131.10 ext4...

The vulnerability of the sg_write function in Linux operating system kernels, allowing a hacker to execute arbitrary code

The vulnerability of the sgwrite function in Linux operating system kernels is related to the use of memory after it is freed. Exploiting this vulnerability can allow an attacker to execute arbitrary code...

Integer overflow

TensorFlow before 1.7.0 has an integer overflow that causes an out-of-bounds read, possibly causing disclosure of the contents of process memory. This occurs in the DecodeBmp feature of the BMP decoder in core/kernels/decodebmpop.cc...

CVE-2018-21233: Out-of-bounds Read

TensorFlow before 1.7.0 has an integer overflow that causes an out-of-bounds read, possibly causing disclosure of the contents of process memory. This occurs in the DecodeBmp feature of the BMP decoder in core/kernels/decodebmpop.cc...

CVE-2019-15792

In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfsbtrfsioctlfdreplace calls fdgetoldfd, then without further checks passes the resulting file into shiftfsrealfdget, which casts file-privatedata, a void that points to a filesystem-depende...

Input validation

Overlayfs in the Linux kernel and shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, both replace vma-vmfile in their mmap handlers. On error the original value is not restored, and the reference is put for the file to which vmfile points. On...

[SECURITY] Fedora 32 Update: bubblewrap-0.4.1-1.fc32

Bubblewrap /usr/bin/bwrap is a core execution engine for unprivileged containers that works as a setuid binary on kernels without user namespaces...

CVE-2020-8835

In the Linux kernel 5.5.0 and newer, the bpf verifier kernel/bpf/verifier.c did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the...

Xen Denial of Service vulnerability (XSA-304)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by a denial of service vulnerability. An erratum exists across some CPUs whereby an instruction fetch may cause a machine check error if the pagetables have been updated in a specific manner...

openSUSE Security Update : libsolv / libzypp / zypper (openSUSE-2020-255)

This update for libsolv, libzypp, zypper fixes the following issues : Security issue fixed : - CVE-2019-18900: Fixed assert cookie file that was world readable bsc1158763. Bug fixes - Fixed removing orphaned packages dropped by to-be-installed products bsc1155819. - Adds libzypp API to mark all...

Security update for libsolv, libzypp, zypper (moderate)

openSUSE Security Update: Security update for libsolv, libzypp, zypper Announcement ID: openSUSE-SU-2020:0255-1 Rating: moderate References: 1135114 1154804 1154805 1155198 1155205 1155298 1155678 1155819 1156158 1157377 1158763 Cross-References: CVE-2019-18900 Affected Products: openSUSE Leap 15...

SUSE-SU-2020:0432-1 Security update for libsolv, libzypp, zypper

This update for libsolv, libzypp, zypper fixes the following issues: Security issue fixed: - CVE-2019-18900: Fixed assert cookie file that was world readable bsc1158763. Bug fixes - Fixed removing orphaned packages dropped by to-be-installed products bsc1155819. - Adds libzypp API to mark all...

Reliable Datagram Sockets (RDS) rds_atomic_free_op Privilege Escalation Exploit

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Reliable Datagram Sockets RDS rdsatomicfreeop NULL pointer dereference Privilege Escalation', 'Description' = %q This module attempts to gain roo...

Kernel update: Virtuozzo ReadyKernel patch 95.0 for Virtuozzo 7.0 and Virtuozzo Infrastructure Platform 2.5

The cumulative Virtuozzo ReadyKernel patch was updated with stability fixes. The patch applies to the kernels 3.10.0-862.9.1.vz7.63.3 Virtuozzo 7.0.8, 3.10.0-862.11.6.vz7.64.7 Virtuozzo 7.0.8 HF1, 3.10.0-862.20.2.vz7.73.29 Virtuozzo 7.0.9 and Virtuozzo Infrastructure Platform 2.5,...