what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New
Showing 1 - 3 of 3 RSS Feed

CVE-2021-20221

Status Candidate

Overview

An out-of-bounds heap buffer access issue was found in the ARM Generic Interrupt Controller emulator of QEMU up to and including qemu 4.2.0on aarch64 platform. The issue occurs because while writing an interrupt ID to the controller memory area, it is not masked to be 4 bits wide. It may lead to the said issue while updating controller state fields and their subsequent processing. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.

Related Files

Red Hat Security Advisory 2021-3061-01
Posted Aug 10, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3061-01 - Kernel-based Virtual Machine offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems. Issues addressed include buffer overflow, denial of service, and out of bounds access vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-13754, CVE-2020-27617, CVE-2021-20221, CVE-2021-3416, CVE-2021-3504
SHA-256 | 66e0a1ac543249bbe6d765192ae964d7bdf8592d935524bd9c4a35ee66ca180c
Ubuntu Security Notice USN-5010-1
Posted Jul 15, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5010-1 - Lei Sun discovered that QEMU incorrectly handled certain MMIO operations. An attacker inside the guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service. Wenxiang Qian discovered that QEMU incorrectly handled certain ATAPI commands. An attacker inside the guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 21.04. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2020-15469, CVE-2020-29443, CVE-2020-35505, CVE-2020-35517, CVE-2021-20221, CVE-2021-20257, CVE-2021-3392, CVE-2021-3409, CVE-2021-3416, CVE-2021-3527, CVE-2021-3544, CVE-2021-3545, CVE-2021-3546, CVE-2021-3593, CVE-2021-3594, CVE-2021-3595, CVE-2021-3608
SHA-256 | c4d63dc41ceb7caa0f49a3eacc4d8caaa17252efd4913df4a83ba610c5446f40
Red Hat Security Advisory 2021-1125-01
Posted Apr 7, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1125-01 - The Advanced Virtualization module provides the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-20221
SHA-256 | 5a2b602bddb1c9f5cc58521ec0aaf557cb5877a7c6055dff7bc3cacdf3ce1fa3
Page 1 of 1
Back1Next

File Archive:

November 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Nov 1st
    30 Files
  • 2
    Nov 2nd
    0 Files
  • 3
    Nov 3rd
    0 Files
  • 4
    Nov 4th
    12 Files
  • 5
    Nov 5th
    44 Files
  • 6
    Nov 6th
    18 Files
  • 7
    Nov 7th
    9 Files
  • 8
    Nov 8th
    8 Files
  • 9
    Nov 9th
    3 Files
  • 10
    Nov 10th
    0 Files
  • 11
    Nov 11th
    14 Files
  • 12
    Nov 12th
    20 Files
  • 13
    Nov 13th
    63 Files
  • 14
    Nov 14th
    18 Files
  • 15
    Nov 15th
    0 Files
  • 16
    Nov 16th
    0 Files
  • 17
    Nov 17th
    0 Files
  • 18
    Nov 18th
    0 Files
  • 19
    Nov 19th
    0 Files
  • 20
    Nov 20th
    0 Files
  • 21
    Nov 21st
    0 Files
  • 22
    Nov 22nd
    0 Files
  • 23
    Nov 23rd
    0 Files
  • 24
    Nov 24th
    0 Files
  • 25
    Nov 25th
    0 Files
  • 26
    Nov 26th
    0 Files
  • 27
    Nov 27th
    0 Files
  • 28
    Nov 28th
    0 Files
  • 29
    Nov 29th
    0 Files
  • 30
    Nov 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2024 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close