CVE-2024-24474

A flaw was found in the am53c974 SCSI controller emulation of QEMU. When an SCSI layer transfer is incorrectly terminated, it is possible for a TI command to cause an SCSI buffer overflow due to the expected transfer data length being less than the available data in the FIFO. When this occurs, the unsigned async_len variable underflows and becomes a large offset, which writes past the end of the allocated SCSI buffer. This flaw could allow a malicious guest to crash QEMU and cause a denial of service condition.

The qemu-kvm versions, as shipped with Red Hat Enterprise Linux and RHEL Advanced Virtualization, are not affected by this CVE as they did not include support for the am53c974 SCSI controller emulation.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.