Ubuntu 20.04 LTS : Linux kernel (GKE) vulnerabilities (USN-5648-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5648-1 advisory. It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of-...

Ubuntu 20.04 LTS : Linux kernel (GCP) vulnerabilities (USN-5644-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5644-1 advisory. It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of-...

Ubuntu 22.04 LTS : Linux kernel (Oracle) vulnerabilities (USN-5640-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5640-1 advisory. It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of-...

Amazon Linux AMI : kernel (ALAS-2022-1624)

The version of kernel installed on the remote host is prior to 4.14.287-148.504. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2022-1624 advisory. There are use-after-free vulnerabilities caused by timer handler in net/rose/rosetimer.c of linux that allow...

Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update is based on upstream 5.15.55 and fixes at least the following security issues: There are use-after-free vulnerabilities caused by timer handler in net/rose/rosetimer.c of linux that allow attackers to crash linux kernel without any privileges CVE-2022-2318. Xen Block and...

Updated kernel packages fix security vulnerabilities

This kernel update is based on upstream 5.15.55 and fixes at least the following security issues: There are use-after-free vulnerabilities caused by timer handler in net/rose/rosetimer.c of linux that allow attackers to crash linux kernel without any privileges CVE-2022-2318. Xen Block and Networ...

Important: kernel

Issue Overview: There are use-after-free vulnerabilities caused by timer handler in net/rose/rosetimer.c of linux that allow attackers to crash linux kernel without any privileges. CVE-2022-2318 Linux disk/nic frontends data leaks This CNA information record relates to multiple CVEs; the text...

CVE-2022-33744

Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged...

CVE-2022-33744

Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged...

DEBIAN-CVE-2022-33744

Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged...

CVE-2022-33744

Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged...

Design/Logic Flaw

Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged...

UBUNTU-CVE-2022-33744

Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged...

CVE-2022-33744

CVE-2022-33744 is an ARM Xen guest vulnerability where unprivileged guests can provoke a Denial of Service in Dom0 via paravirtual devices. The root cause is a race window in updating an rbtree that tracks guest mappings when mapping guest pages on ARM, potentially crashing Dom0 or blocking furth...

CVE-2022-33744

Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged...

CVE-2022-33744

Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged...

Arm guests can cause Dom0 DoS via PV devices

ISSUE DESCRIPTION When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to caus...

Hotfix XS82E034 - For Citrix Hypervisor 8.2

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.2. Information About this Hotfix Component| Details ---|--- Prerequisite| None Post-update tasks| Restart Host Content live patchable| Yes Baselines for Live Patch| XS82E024, XS82E030 Revision History|...

Guest triggered use-after-free in Linux xen-netback

ISSUE DESCRIPTION A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9038)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9038 advisory. - netfilter: add and use nfhookslowlist Florian Westphal Orabug: 32372530 CVE-2021-20177 - target: fix XCOPY NAA identifier lookup David Disseldorp...