CVE-2020-27821

Published: Dic 08, 2020 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2020-20322 Aliases: GSD-2020-27821
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,0
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: high
User Interaction: none
Scope: changed
Confidentiality: none
Integrity: none
Availability: high
LOW 2,1
Source: [email protected]
Access Vector: local
Access Complexity: low
Authentication: none
Confidentiality: none
Integrity: none
Availability: partial

Description

AI Translation Available

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 90 Days)

787

Out-of-bounds Write

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Assembly, C, C++, Memory-Unsafe
Technologies: ICS/OT
Likelihood of Exploit: High
View CWE Details
Operating System

Debian Linux by Debian

Product Information
Vendor Debian
Product Debian Linux
Version 10.0
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Qemu by Qemu

Product Information
Vendor Qemu
Product Qemu
Version Range Affected
To 5.2.0 (exclusive)
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://bugzilla.redhat.com/show_bug.cgi?id=1902651
Issue Tracking Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1902651
https://lists.debian.org/debian-lts-announce/2022/09/msg000…
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
https://security.netapp.com/advisory/ntap-20210115-0006/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210115-0006/
http://www.openwall.com/lists/oss-security/2020/12/16/6
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/12/16/6
https://bugzilla.redhat.com/show_bug.cgi?id=1902651
Issue Tracking Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1902651
https://lists.debian.org/debian-lts-announce/2022/09/msg000…
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
https://security.netapp.com/advisory/ntap-20210115-0006/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210115-0006/
http://www.openwall.com/lists/oss-security/2020/12/16/6
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/12/16/6