CVE-2020-35506

MEDIUM

QEMU < 6.0.0 - Use-After-Free in am53c974 SCSI Host Bus Adapter Emulation

Title source: llm

Description

A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0 during the handling of the 'Information Transfer' command (CMD_TI). This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service or potential code execution with the privileges of the QEMU process.

References (5)

Core 5

Core References

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2021/04/16/3

Mailing List, Third Party Advisory x_refsource_misc

https://www.openwall.com/lists/oss-security/2021/04/16/3

Issue Tracking, Third Party Advisory x_refsource_misc

https://bugzilla.redhat.com/show_bug.cgi?id=1909996

Third Party Advisory x_refsource_confirm

https://security.netapp.com/advisory/ntap-20210713-0006/

Third Party Advisory vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/202208-27

Scores

CVSS v3 6.7

EPSS 0.0003

EPSS Percentile 9.0%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-416

Status published

Products (1)

qemu/qemu < 6.0.0

Published May 28, 2021

Tracked Since Feb 18, 2026