CVE-2023-34322 top-level shadow reference dropped too early for 64-bit PV guests

For migration as well as to work around kernels unaware of L1TF see XSA-273, PV guests may be run in shadow paging mode. Since Xen itself needs to be mapped when PV guests run, Xen and shadowed PV guests run directly the respective shadow page tables. For 64-bit PV guests this means running on th...

CVE-2023-34322

For migration as well as to work around kernels unaware of L1TF see XSA-273, PV guests may be run in shadow paging mode. Since Xen itself needs to be mapped when PV guests run, Xen and shadowed PV guests run directly the respective shadow page tables. For 64-bit PV guests this means running on th...

CVE-2023-34322

For migration as well as to work around kernels unaware of L1TF see XSA-273, PV guests may be run in shadow paging mode. Since Xen itself needs to be mapped when PV guests run, Xen and shadowed PV guests run directly the respective shadow page tables. For 64-bit PV guests this means running on th...

CVE-2023-34322 top-level shadow reference dropped too early for 64-bit PV guests

For migration as well as to work around kernels unaware of L1TF see XSA-273, PV guests may be run in shadow paging mode. Since Xen itself needs to be mapped when PV guests run, Xen and shadowed PV guests run directly the respective shadow page tables. For 64-bit PV guests this means running on th...

CVE-2023-34322: Improper Check for Dropped Privileges

For migration as well as to work around kernels unaware of L1TF see XSA-273, PV guests may be run in shadow paging mode. Since Xen itself needs to be mapped when PV guests run, Xen and shadowed PV guests run directly the respective shadow page tables. For 64-bit PV guests this means running on th...

[SECURITY] [DSA 5594-1] linux security update

------------------------------------------------------------------------- Debian Security Advisory DSA-5594-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso January 02, 2024 https://www.debian.org/security/faq -...

Mattermost allows demoted guests to change group names

Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change group names...

Design/Logic Flaw

Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change group names...

CVE-2023-50333 Lack of restriction to manage group names for freshly demoted guests

Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change group names...

PT-2024-12275

Name of the Vulnerable Software and Affected Versions SEV Firmware affected versions not specified Description The issue is related to the failure to initialize memory in SEV Firmware, which may allow a privileged attacker to access stale data from other guests. Recommendations At the moment, the...

Sophisticated Booking.com Scam Targeting Guests with Vidar Infostealer

By Deeba Ahmed Vidar infostealer is capable of stealing browsing data, including passwords, cryptocurrency wallet credentials, and other personal information. This is a post from HackRead.com Read the original post: Sophisticated Booking.com Scam Targeting Guests with Vidar Infostealer...

MGASA-2023-0331 Updated kernel-linus packages fix security vulnerabilities

This kernel update is based on upstream 6.5.11 and fixes or adds mitigations for at least the following security issues: A use-after-free vulnerability was found in drivers/nvme/target/tcp.c in nvmettcpfreecrypto due to a logical bug in the NVMe-oF/TCP subsystem in the Linux kernel. This issue ma...

MGASA-2023-0328 Updated kernel packages fix security vulnerabilities and other bugs

This kernel update is based on upstream 6.5.11 and fixes or adds mitigations for at least the following security issues: A use-after-free vulnerability was found in drivers/nvme/target/tcp.c in nvmettcpfreecrypto due to a logical bug in the NVMe-oF/TCP subsystem in the Linux kernel. This issue ma...

CVE-2023-5088

A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead potentially overwriting the VM's boot code. This could be used, for example, by L2 guests with a virtual disk vdiskL2 stored on a virtual disk of an L1 vdiskL1...

SUSE CVE-2023-34324

Closing of an event channel in the Linux kernel can result in a deadlock. This happens when the close is being performed in parallel to an unrelated Xen console action and the handling of a Xen console interrupt in an unprivileged guest. The closing of an event channel is e.g. triggered by remova...

Amazon Linux 2 : kernel (ALAS-2023-2328)

The version of kernel installed on the remote host is prior to 4.14.327-246.539. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-2328 advisory. 2024-07-03: CVE-2023-52574 was added to this advisory. 2024-06-06: CVE-2023-52567 was added to this advisory...

Medium: kernel

Issue Overview: A flaw in the kernel Xen event handler can cause a deadlock with Xen console handling in unprivileged Xen guests. CVE-2023-34324 A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer skb was assumed to be associated with a device before callin...

CVE-2023-5088

A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead potentially overwriting the VM's boot code. This could be used, for example, by L2 guests with a virtual disk vdiskL2 stored on a virtual disk of an L1 vdiskL1...

Low: Red Hat Security Advisory: libguestfs-winsupport security update

An update for libguestfs-winsupport is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Low: libguestfs-winsupport security update

The libguestfs-winsupport package adds support for Windows guests to libguestfs, a set of tools and libraries allowing users to access and modify virtual machine VM disk images. Security Fixes: NTFS-3G: buffer overflow issue in NTFS-3G can cause code execution via crafted metadata in an NTFS imag...