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CVE-2020-35504

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Date: May 28, 2021

A NULL pointer dereference flaw was found in the SCSI emulation support of QEMU in versions before 6.0.0. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Language: C

Severity Score

Related Resources (13)

https://nvd.nist.gov/vuln/detail/CVE-2020-35504
https://security-tracker.debian.org/tracker/CVE-2020-35504
https://security.gentoo.org/glsa/202208-27
https://bugzilla.redhat.com/show_bug.cgi?id=1909766
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-35504
https://security.alpinelinux.org/vuln/CVE-2020-35504
https://security.netapp.com/advisory/ntap-20210713-0006/
https://security.archlinux.org/CVE-2020-35504
https://www.openwall.com/lists/oss-security/2021/04/16/3
http://www.openwall.com/lists/oss-security/2021/04/16/3
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
https://bugs.launchpad.net/qemu/+bug/1910723
https://www.mend.io/vulnerability-database/CVE-2020-35504

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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