CVE-2022-42327

x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist...

USN-5655-1 linux-intel-iotg vulnerabilities

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- bounds write. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2021-33655 Duoming...

USN-5640-1 linux-oracle vulnerabilities

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- bounds write. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2021-33655 Duoming...

PT-2024-11520 · Freebsd · Freebsd

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned in the provided descriptions. Description: A particular case of memory sharing is mishandled in the virtual memory system, similar to a previously known issue but with a different root cause. Thi...

MGASA-2022-0263 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...

Sensitive Information Disclosure

Xen is vulnerable to Sensitive Information Disclosure. Linux block table does not zero memory regions before sharing with the backend, leading to information disclosure. Additionally, the grant table only shares 4k pages, leading to unrelated data from different backends residing in the same page...

CVE-2022-33742

Linux disk/nic frontends data leaks This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend CVE-2022-26365,...

CVE-2022-33742

Linux disk/nic frontends data leaks This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend CVE-2022-26365,...

Design/Logic Flaw

Linux disk/nic frontends data leaks This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend CVE-2022-26365,...

UBUNTU-CVE-2022-33741

Linux disk/nic frontends data leaks This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend CVE-2022-26365,...

UBUNTU-CVE-2022-26365

Linux disk/nic frontends data leaks This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend CVE-2022-26365,...

CVE-2022-33742

Linux disk/nic frontends data leaks This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend CVE-2022-26365,...

CVE-2022-33741

CVE-2022-33741 concerns Linux PV frontend frontends (Block and Network) used by Xen that leak data through memory sharing with the backend. The root cause described across sources is that these frontends do not zero memory regions before sharing them with the backend, and the grant table granular...

CVE-2022-33740

Linux disk/nic frontends data leaks This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend CVE-2022-26365,...

CVE-2022-33740

Summary: The CVE-2022-33740 issue concerns the Linux Block and Network PV device frontends leaking data to the backend. The root cause described in the sources is that memory regions are not zeroed before sharing with the backend, and the grant-table granularity (4K pages) means data from differe...

Xen 信息泄露漏洞

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. Xen has a security vulnerability that stems...

OESA-2021-1430 php security update

PHP is an HTML-embedded scripting language. PHP attempts to make it easy for developers to write dynamically generated web pages. PHP also offers built-in database integration for several commercial and non-commercial database management systems, so writing a database-enabled webpage with PHP is...

PT-2021-4560 · Php +10 · Php +10

Name of the Vulnerable Software and Affected Versions: PHP versions 7.3.x through 7.3.31 PHP versions 7.4.x through 7.4.24 PHP versions 8.0.x through 8.0.11 Description: The issue is related to the PHP FPM SAPI component, where child worker processes can access and modify memory shared with the...

FreeBSD -- Memory disclosure by stale virtual memory mapping

Problem Description: A particular case of memory sharing is mishandled in the virtual memory system. It is possible and legal to establish a relationship where multiple descendant processes share a mapping which shadows memory of an ancestor process. In this scenario, when one process modifies...

Information Disclosure

apache arrow is vulnerable to information disclosure. In certain cases, arrays with null values could be built using uninitialized memory for their data segment, resulting in unintentional memory being shared over the wire...