CVE-2020-35505

Publication date 28 May 2021

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

4.4 · Medium

Score breakdown

A NULL pointer dereference flaw was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0. This issue occurs while handling the 'Information Transfer' command. 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.

Read the notes from the security team

Status

Package Ubuntu Release Status
qemu 24.10 oracular
Fixed 1:6.0+dfsg-1~ubuntu3
24.04 LTS noble
Fixed 1:6.0+dfsg-1~ubuntu3
23.10 mantic
Fixed 1:6.0+dfsg-1~ubuntu3
23.04 lunar
Fixed 1:6.0+dfsg-1~ubuntu3
22.10 kinetic
Fixed 1:6.0+dfsg-1~ubuntu3
22.04 LTS jammy
Fixed 1:6.0+dfsg-1~ubuntu3
21.10 impish
Fixed 1:6.0+dfsg-1~ubuntu3
21.04 hirsute
Fixed 1:5.2+dfsg-9ubuntu3.1
20.10 groovy
Fixed 1:5.0-5ubuntu9.9
20.04 LTS focal
Fixed 1:4.2-3ubuntu6.17
18.04 LTS bionic
Fixed 1:2.11+dfsg-1ubuntu7.37
16.04 LTS xenial
Vulnerable
14.04 LTS trusty Ignored end of ESM support, was needed
qemu-kvm 24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.10 kinetic Not in release
22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

Notes

mdeslaur

same commits as CVE-2020-35504

Severity score breakdown

Parameter Value
Base score 4.4 · Medium
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H