CVE-2020-35506

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.

• CWE-416
• CWE-416

• http://www.openwall.com/lists/oss-security/2021/04/16/3Mailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1909996Issue Tracking, Third Party Advisory
• https://security.gentoo.org/glsa/202208-27Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210713-0006/Third Party Advisory
• https://www.openwall.com/lists/oss-security/2021/04/16/3Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2021/04/16/3Mailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1909996Issue Tracking, Third Party Advisory
• https://security.gentoo.org/glsa/202208-27Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210713-0006/Third Party Advisory
• https://www.openwall.com/lists/oss-security/2021/04/16/3Mailing List, Third Party Advisory

Published

May 28, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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